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All questions of Deloitte for Interview Preparation Exam
M and N’s salaries together amount to Rs. 2,000. M spends 95% of his salary and N spends 85% of his. If now their savings are the same, what is N’s salary?- a)Rs.1500
- b)Rs.750
- c)Rs.1250
- d)Rs.500
Correct answer is option 'D'. Can you explain this answer?
M and N’s salaries together amount to Rs. 2,000. M spends 95% of his salary and N spends 85% of his. If now their savings are the same, what is N’s salary?
a)
Rs.1500
b)
Rs.750
c)
Rs.1250
d)
Rs.500
|
Kishan Darak answered |
M+N=2000
Savings of M=100-95=5%
Savings of N= 100-85 =15%
5% of M saving =15%of N saving
Therefore M/N =15/5
the ratio of their salary is 3:1
N's Salary = 1/4 ×2000
N's Salary = 500
Option D is correct.
Savings of M=100-95=5%
Savings of N= 100-85 =15%
5% of M saving =15%of N saving
Therefore M/N =15/5
the ratio of their salary is 3:1
N's Salary = 1/4 ×2000
N's Salary = 500
Option D is correct.
A trader marks the price at 8 percent higher than the original price. Due to the hike in demand, he again increases the price by 10 percent. How much percent profit he gets.- a)17.8%
- b)18.8%
- c)19.8%
- d)20.8%
Correct answer is option 'B'. Can you explain this answer?
A trader marks the price at 8 percent higher than the original price. Due to the hike in demand, he again increases the price by 10 percent. How much percent profit he gets.
a)
17.8%
b)
18.8%
c)
19.8%
d)
20.8%
|
Kavya Nair answered |
Calculation:
Step 1: Initial price increase
- Let the original price be 100.
- The trader marks the price at 8% higher, so the new price = 100 + 8% of 100 = 100 + 8 = 108.
Step 2: Second price increase
- Due to the hike in demand, the price is increased by 10%.
- The new price after the second increase = 108 + 10% of 108 = 108 + 10.8 = 118.8.
Profit Percentage Calculation:
- Profit percentage = ((Selling Price - Cost Price) / Cost Price) * 100
- Cost Price = 100 (initial price)
- Selling Price = 118.8 (final price after both increases)
- Profit percentage = ((118.8 - 100) / 100) * 100 = 18.8%
Therefore, the trader gets a profit percentage of 18.8%. Option B is the correct answer.
Step 1: Initial price increase
- Let the original price be 100.
- The trader marks the price at 8% higher, so the new price = 100 + 8% of 100 = 100 + 8 = 108.
Step 2: Second price increase
- Due to the hike in demand, the price is increased by 10%.
- The new price after the second increase = 108 + 10% of 108 = 108 + 10.8 = 118.8.
Profit Percentage Calculation:
- Profit percentage = ((Selling Price - Cost Price) / Cost Price) * 100
- Cost Price = 100 (initial price)
- Selling Price = 118.8 (final price after both increases)
- Profit percentage = ((118.8 - 100) / 100) * 100 = 18.8%
Therefore, the trader gets a profit percentage of 18.8%. Option B is the correct answer.
Choose the word which is different from the rest.- a)Litchi
- b)Orange
- c)Pear
- d)Apple
Correct answer is option 'B'. Can you explain this answer?
Choose the word which is different from the rest.
a)
Litchi
b)
Orange
c)
Pear
d)
Apple
|
Kajal Desai answered |
Understanding the Options
In the provided list, we have four types of fruits:
- a) Litchi
- b) Orange
- c) Pear
- d) Apple
Analysis of the Fruits
Let’s examine each fruit closely to understand why "Orange" is the odd one out.
1. Type of Fruit
- Litchi, Pear, and Apple are classified as soft fruits. They have a delicate texture and are usually consumed fresh or in desserts.
- Orange, on the other hand, is categorized as a citrus fruit, known for its tangy flavor and high vitamin C content.
2. Taste Profile
- Litchi, Pear, and Apple generally have a sweet or mildly sweet taste.
- Orange is distinctly tart and acidic, which sets it apart from the sweetness of the others.
3. Botanical Family
- Litchi belongs to the family Sapindaceae.
- Pear and Apple fall under the family Rosaceae.
- Orange belongs to the family Rutaceae.
This botanical classification highlights the significant differences among these fruits.
Conclusion
Considering the points above, the word "Orange" is different because:
- It is a citrus fruit, while the others are not.
- It has a uniquely tangy taste compared to the sweet flavors of Litchi, Pear, and Apple.
- It belongs to a different botanical family than the other three.
Thus, option 'b' is correctly identified as the answer.
In the provided list, we have four types of fruits:
- a) Litchi
- b) Orange
- c) Pear
- d) Apple
Analysis of the Fruits
Let’s examine each fruit closely to understand why "Orange" is the odd one out.
1. Type of Fruit
- Litchi, Pear, and Apple are classified as soft fruits. They have a delicate texture and are usually consumed fresh or in desserts.
- Orange, on the other hand, is categorized as a citrus fruit, known for its tangy flavor and high vitamin C content.
2. Taste Profile
- Litchi, Pear, and Apple generally have a sweet or mildly sweet taste.
- Orange is distinctly tart and acidic, which sets it apart from the sweetness of the others.
3. Botanical Family
- Litchi belongs to the family Sapindaceae.
- Pear and Apple fall under the family Rosaceae.
- Orange belongs to the family Rutaceae.
This botanical classification highlights the significant differences among these fruits.
Conclusion
Considering the points above, the word "Orange" is different because:
- It is a citrus fruit, while the others are not.
- It has a uniquely tangy taste compared to the sweet flavors of Litchi, Pear, and Apple.
- It belongs to a different botanical family than the other three.
Thus, option 'b' is correctly identified as the answer.
In a horse racing, there are three horses, P, Q, and R. The Payoffs at P is 3: 7, at Q, is 4: 9, at R, is 5: 11. Salman bets Rs. 693 on a horse which would fetch the maximum amount. Luckily his horse has won. Then what is the total amount won by him?- a)Rs.990
- b)Rs.1001
- c)Rs.1008
- d)Rs.1011
Correct answer is option 'C'. Can you explain this answer?
In a horse racing, there are three horses, P, Q, and R. The Payoffs at P is 3: 7, at Q, is 4: 9, at R, is 5: 11. Salman bets Rs. 693 on a horse which would fetch the maximum amount. Luckily his horse has won. Then what is the total amount won by him?
a)
Rs.990
b)
Rs.1001
c)
Rs.1008
d)
Rs.1011
|
|
Kiran Desai answered |
Understanding the Payoffs
In horse racing, the payoffs indicate how much a bettor can win based on their stake. Here are the payoffs for each horse:
- Horse P: 3:7
- Horse Q: 4:9
- Horse R: 5:11
Calculating Maximum Payoff
To determine which horse yields the maximum return on the Rs. 693 bet, we need to convert the payoffs into a decimal format and calculate the total return for each horse.
Horse P
- Payoff Ratio: 3:7
- For every Rs. 7 bet, you win Rs. 3.
- Total Amount Won = (693 / 7) * 3 = Rs. 297.43
- Total Return = Stake + Winnings = 693 + 297.43 = Rs. 990.43 (approx. Rs. 990)
Horse Q
- Payoff Ratio: 4:9
- For every Rs. 9 bet, you win Rs. 4.
- Total Amount Won = (693 / 9) * 4 = Rs. 308
- Total Return = Stake + Winnings = 693 + 308 = Rs. 1001
Horse R
- Payoff Ratio: 5:11
- For every Rs. 11 bet, you win Rs. 5.
- Total Amount Won = (693 / 11) * 5 = Rs. 315
- Total Return = Stake + Winnings = 693 + 315 = Rs. 1008
Conclusion
After calculating the returns for each horse, the maximum payout comes from Horse R, which amounts to Rs. 1008. Therefore, the correct answer is:
Rs. 1008 (Option C)
In horse racing, the payoffs indicate how much a bettor can win based on their stake. Here are the payoffs for each horse:
- Horse P: 3:7
- Horse Q: 4:9
- Horse R: 5:11
Calculating Maximum Payoff
To determine which horse yields the maximum return on the Rs. 693 bet, we need to convert the payoffs into a decimal format and calculate the total return for each horse.
Horse P
- Payoff Ratio: 3:7
- For every Rs. 7 bet, you win Rs. 3.
- Total Amount Won = (693 / 7) * 3 = Rs. 297.43
- Total Return = Stake + Winnings = 693 + 297.43 = Rs. 990.43 (approx. Rs. 990)
Horse Q
- Payoff Ratio: 4:9
- For every Rs. 9 bet, you win Rs. 4.
- Total Amount Won = (693 / 9) * 4 = Rs. 308
- Total Return = Stake + Winnings = 693 + 308 = Rs. 1001
Horse R
- Payoff Ratio: 5:11
- For every Rs. 11 bet, you win Rs. 5.
- Total Amount Won = (693 / 11) * 5 = Rs. 315
- Total Return = Stake + Winnings = 693 + 315 = Rs. 1008
Conclusion
After calculating the returns for each horse, the maximum payout comes from Horse R, which amounts to Rs. 1008. Therefore, the correct answer is:
Rs. 1008 (Option C)
Two pipes M and N can fill a tank in 8 minutes and 12 minutes respectively. If both the pipes are opened simultaneously, after what time should N be closed so that the tank is full in 6 minutes?- a)1 min
- b)2 min
- c)3 min
- d)4 min
Correct answer is option 'C'. Can you explain this answer?
Two pipes M and N can fill a tank in 8 minutes and 12 minutes respectively. If both the pipes are opened simultaneously, after what time should N be closed so that the tank is full in 6 minutes?
a)
1 min
b)
2 min
c)
3 min
d)
4 min
|
Nishanth Chaudhary answered |
Calculation:
To find the time after which pipe N should be closed, we need to consider the rate at which the tank is filled by both pipes M and N.
Let the tank's total capacity be 1 unit.
Rate of filling:
- Pipe M fills the tank in 8 minutes, so its rate of filling = 1/8 units per minute.
- Pipe N fills the tank in 12 minutes, so its rate of filling = 1/12 units per minute.
When both pipes are open:
- Combined rate of filling = 1/8 + 1/12 = 5/24 units per minute.
Time to fill the tank in 6 minutes:
To fill the tank in 6 minutes, the total amount filled in 6 minutes by both pipes should be equal to the tank's capacity, which is 1 unit.
Total amount filled in 6 minutes = (5/24) * t + (1/12) * (6-t) = 1, where t is the time after which pipe N should be closed.
Solving the equation:
- (5/24) * t + (1/12) * (6-t) = 1
- 5t/24 + (6-t)/12 = 1
- 5t/24 + 6/12 - t/12 = 1
- 5t/24 + 1/2 - t/12 = 1
- 5t/24 - t/12 = 1 - 1/2
- 5t/24 - 2t/24 = 1/2
- 3t/24 = 1/2
- t = 4
Therefore, N should be closed after 4 minutes so that the tank is full in 6 minutes.
Conclusion:
The correct answer is option C) 3 min.
To find the time after which pipe N should be closed, we need to consider the rate at which the tank is filled by both pipes M and N.
Let the tank's total capacity be 1 unit.
Rate of filling:
- Pipe M fills the tank in 8 minutes, so its rate of filling = 1/8 units per minute.
- Pipe N fills the tank in 12 minutes, so its rate of filling = 1/12 units per minute.
When both pipes are open:
- Combined rate of filling = 1/8 + 1/12 = 5/24 units per minute.
Time to fill the tank in 6 minutes:
To fill the tank in 6 minutes, the total amount filled in 6 minutes by both pipes should be equal to the tank's capacity, which is 1 unit.
Total amount filled in 6 minutes = (5/24) * t + (1/12) * (6-t) = 1, where t is the time after which pipe N should be closed.
Solving the equation:
- (5/24) * t + (1/12) * (6-t) = 1
- 5t/24 + (6-t)/12 = 1
- 5t/24 + 6/12 - t/12 = 1
- 5t/24 + 1/2 - t/12 = 1
- 5t/24 - t/12 = 1 - 1/2
- 5t/24 - 2t/24 = 1/2
- 3t/24 = 1/2
- t = 4
Therefore, N should be closed after 4 minutes so that the tank is full in 6 minutes.
Conclusion:
The correct answer is option C) 3 min.
A Lion starts chasing a Deer. It takes 4 hours to catch the Deer. If the speed of the Lion is 40 kmph. What is the speed of Deer?- a)20 kmph
- b)50 kmph
- c)40 kmph
- d)70 kmph
Correct answer is option 'A'. Can you explain this answer?
A Lion starts chasing a Deer. It takes 4 hours to catch the Deer. If the speed of the Lion is 40 kmph. What is the speed of Deer?
a)
20 kmph
b)
50 kmph
c)
40 kmph
d)
70 kmph
|
Codebreakers answered |
Let us assume that
Deer Speed = x kmph
Then, 4 = 4*x/(40-x)
x = 20 kmph
Deer Speed = x kmph
Then, 4 = 4*x/(40-x)
x = 20 kmph
Choose the word which is different from the rest.- a)Scallop
- b)Mussel
- c)Oyster
- d)Clam
Correct answer is option 'A'. Can you explain this answer?
Choose the word which is different from the rest.
a)
Scallop
b)
Mussel
c)
Oyster
d)
Clam
|
Sagarika Khanna answered |
Understanding the Options
The four options provided are all types of shellfish, but they belong to different families within the mollusk category.
Categories of Shellfish
- Scallop:
- Belongs to the family Pectinidae.
- Known for their fan-shaped shells and ability to swim by clapping their shells together.
- Mussel:
- Part of the Mytilidae family.
- Typically found in freshwater and marine environments, recognized for their elongated, asymmetrical shells.
- Oyster:
- Comes from the Ostreidae family.
- Known for their rough, irregular shells and often cultivated for pearls.
- Clam:
- A member of the Veneridae family.
- Characterized by their oval-shaped shells and burrowing behavior.
Why Scallop is Different
- Swimming Ability:
- Scallops are unique among the listed options because they can swim by rapidly closing and opening their shells, which is not a trait of mussels, oysters, or clams.
- Shell Shape and Structure:
- Scallops have a distinct fan-shaped shell, while the others have more symmetrical and rounded shells.
- Culinary Uses:
- While all are edible, scallops are often considered a delicacy and have a different texture and flavor profile compared to the others.
Conclusion
In summary, scallops stand out due to their unique swimming ability, shell shape, and culinary distinction, making them different from mussels, oysters, and clams.
The four options provided are all types of shellfish, but they belong to different families within the mollusk category.
Categories of Shellfish
- Scallop:
- Belongs to the family Pectinidae.
- Known for their fan-shaped shells and ability to swim by clapping their shells together.
- Mussel:
- Part of the Mytilidae family.
- Typically found in freshwater and marine environments, recognized for their elongated, asymmetrical shells.
- Oyster:
- Comes from the Ostreidae family.
- Known for their rough, irregular shells and often cultivated for pearls.
- Clam:
- A member of the Veneridae family.
- Characterized by their oval-shaped shells and burrowing behavior.
Why Scallop is Different
- Swimming Ability:
- Scallops are unique among the listed options because they can swim by rapidly closing and opening their shells, which is not a trait of mussels, oysters, or clams.
- Shell Shape and Structure:
- Scallops have a distinct fan-shaped shell, while the others have more symmetrical and rounded shells.
- Culinary Uses:
- While all are edible, scallops are often considered a delicacy and have a different texture and flavor profile compared to the others.
Conclusion
In summary, scallops stand out due to their unique swimming ability, shell shape, and culinary distinction, making them different from mussels, oysters, and clams.
After decreasing 24% in the price of an article costs Rs.912. Find the actual cost of an article?- a)1400
- b)1300
- c)1200
- d)1100
Correct answer is option 'C'. Can you explain this answer?
After decreasing 24% in the price of an article costs Rs.912. Find the actual cost of an article?
a)
1400
b)
1300
c)
1200
d)
1100
|
Pk Academy answered |
CP* (76/100) = 912
CP= 12 * 100
Hence, the Cost Price is 1200
CP= 12 * 100
Hence, the Cost Price is 1200
In a class of 45 students, Aravind’s rank from the top is 16th. Basha is 6 ranks below Aravind. What is Basha’s rank from the bottom?- a)23rd
- b)24th
- c)30th
- d)32nd
Correct answer is option 'B'. Can you explain this answer?
In a class of 45 students, Aravind’s rank from the top is 16th. Basha is 6 ranks below Aravind. What is Basha’s rank from the bottom?
a)
23rd
b)
24th
c)
30th
d)
32nd
|
|
Pk Academy answered |
According to the given data
Basha’s rank from bottom = 45 – (16 + 6) + 1 = 24th
Basha’s rank from bottom = 45 – (16 + 6) + 1 = 24th
If the price of an article is increased by 15%, then by how much the household should decrease their consumption so as to keep his expenditure same.- a)11(1/23)%
- b)11(2/23)%
- c)13(1/23) %
- d)13(2/23)%
Correct answer is option 'C'. Can you explain this answer?
If the price of an article is increased by 15%, then by how much the household should decrease their consumption so as to keep his expenditure same.
a)
11(1/23)%
b)
11(2/23)%
c)
13(1/23) %
d)
13(2/23)%
|
|
Rhea Mehta answered |
Explanation:
To calculate the decrease in consumption needed to keep the expenditure the same after a 15% price increase, we can use the following formula:
Let x be the original price of the article and y be the original quantity consumed.
Expenditure = Price * Quantity
After a 15% increase in price, the new price will be 1.15x. Let z be the new quantity to be consumed to keep the expenditure the same.
Therefore,
Expenditure = 1.15x * z
To keep the expenditure the same:
x * y = 1.15x * z
Solving for z:
z = (x * y) / (1.15x)
z = y / 1.15
z = 13.043y
Calculation:
The decrease in consumption needed to keep the expenditure the same is:
Decrease = y - z
Decrease = y - 13.043y
Decrease = -0.043y
To calculate the percentage decrease:
Percentage Decrease = (0.043y / y) * 100%
Percentage Decrease = 4.3%
Therefore, the household should decrease their consumption by 13(1/23)% to keep their expenditure the same after a 15% price increase.
So, the correct answer is option C. 13(1/23)%.
To calculate the decrease in consumption needed to keep the expenditure the same after a 15% price increase, we can use the following formula:
Let x be the original price of the article and y be the original quantity consumed.
Expenditure = Price * Quantity
After a 15% increase in price, the new price will be 1.15x. Let z be the new quantity to be consumed to keep the expenditure the same.
Therefore,
Expenditure = 1.15x * z
To keep the expenditure the same:
x * y = 1.15x * z
Solving for z:
z = (x * y) / (1.15x)
z = y / 1.15
z = 13.043y
Calculation:
The decrease in consumption needed to keep the expenditure the same is:
Decrease = y - z
Decrease = y - 13.043y
Decrease = -0.043y
To calculate the percentage decrease:
Percentage Decrease = (0.043y / y) * 100%
Percentage Decrease = 4.3%
Therefore, the household should decrease their consumption by 13(1/23)% to keep their expenditure the same after a 15% price increase.
So, the correct answer is option C. 13(1/23)%.
If CALM is written as XZON, YEAR may be written as- a)BVIZ
- b)BVZJ
- c)BVZI
- d)BZVI
Correct answer is option 'C'. Can you explain this answer?
If CALM is written as XZON, YEAR may be written as
a)
BVIZ
b)
BVZJ
c)
BVZI
d)
BZVI
|
|
Codebreakers answered |
The concept of Reverse EJOTY is followed.
Or we can also say that the sum of the letter & its respective coded letter is 27.
Y+B=25+2=27, E+V=5+22=27, and so on.
Hence code for YEAR is ‘BVZI’.
Or we can also say that the sum of the letter & its respective coded letter is 27.
Y+B=25+2=27, E+V=5+22=27, and so on.
Hence code for YEAR is ‘BVZI’.
Peace: Chaos:: Creation:?
- a)Build
- b)Manufacture
- c)Destruction
- d)Construction
Correct answer is option 'C'. Can you explain this answer?
Peace: Chaos:: Creation:?
a)
Build
b)
Manufacture
c)
Destruction
d)
Construction
|
|
Pk Academy answered |
As the opposite meaning of peace is chaos
Therefore, the opposite meaning of creation is destruction.
Therefore, the opposite meaning of creation is destruction.
Country: President:: State: ?- a)Legislator
- b)Minister
- c)Governor
- d)M.P
Correct answer is option 'C'. Can you explain this answer?
Country: President:: State: ?
a)
Legislator
b)
Minister
c)
Governor
d)
M.P
|
|
Codebreakers answered |
President is the nominal head of a Country
Similarly, Governor is the nominal head of a State
Similarly, Governor is the nominal head of a State
Choose the word which is different from the rest.- a)Rat
- b)Mongoose
- c)Snake
- d)Frog
Correct answer is option 'C'. Can you explain this answer?
Choose the word which is different from the rest.
a)
Rat
b)
Mongoose
c)
Snake
d)
Frog
|
CodeNation answered |
Snake only poisonous animal among them
Two Trains of the same length are running in the same direction with speed 50 kmph and 80 kmph. The latter completely cross the man in 18sec. The length of each Train is- a)70 m
- b)75 m
- c)80 m
- d)150 m
Correct answer is option 'B'. Can you explain this answer?
Two Trains of the same length are running in the same direction with speed 50 kmph and 80 kmph. The latter completely cross the man in 18sec. The length of each Train is
a)
70 m
b)
75 m
c)
80 m
d)
150 m
|
|
Codebreakers answered |
80 – 50 = 30
30×(5/18) = 25/3 m/s
Distance covered in 20 sec = 18 ×(25/3) = 150
Therefore, Length of each Train = 150/2 = 75 m
30×(5/18) = 25/3 m/s
Distance covered in 20 sec = 18 ×(25/3) = 150
Therefore, Length of each Train = 150/2 = 75 m
Pipes M and N can fill a cistern in 15 hours together. But if these pipes operate separately M takes 40 hours less than N to fill the tank. In how many hours the pipe M will fill the cistern working alone?- a)15 hours
- b)20 hours
- c)40 hours
- d)60 hours
Correct answer is option 'B'. Can you explain this answer?
Pipes M and N can fill a cistern in 15 hours together. But if these pipes operate separately M takes 40 hours less than N to fill the tank. In how many hours the pipe M will fill the cistern working alone?
a)
15 hours
b)
20 hours
c)
40 hours
d)
60 hours
|
|
Codebreakers answered |
Let M takes x hours
Then, N = (x+40) hours
1/x + 1/(x+40) = 1/15
Therefore, x = 20
Hence the pipe M will fill the cistern in 20 hours
Then, N = (x+40) hours
1/x + 1/(x+40) = 1/15
Therefore, x = 20
Hence the pipe M will fill the cistern in 20 hours
A number of students are standing in a row facing north is such a way that a particular student is nineteenth from both the ends. To find the number of students in the class.- a)36
- b)37
- c)38
- d)39
Correct answer is option 'B'. Can you explain this answer?
A number of students are standing in a row facing north is such a way that a particular student is nineteenth from both the ends. To find the number of students in the class.
a)
36
b)
37
c)
38
d)
39
|
|
Codebreakers answered |
According to the given data
(18 students) Student (18 students) = 18+18+1 = 37
(18 students) Student (18 students) = 18+18+1 = 37
In a row of children, Darshini is 7th from the left and Vikas is 9th from the right. When they interchange their places among themselves, Darshini becomes 18th From the left. Then what will be Vikas present position from the right?- a)20th
- b)18th
- c)17th
- d)15th
Correct answer is option 'A'. Can you explain this answer?
In a row of children, Darshini is 7th from the left and Vikas is 9th from the right. When they interchange their places among themselves, Darshini becomes 18th From the left. Then what will be Vikas present position from the right?
a)
20th
b)
18th
c)
17th
d)
15th
|
|
Codebreakers answered |
Present position of Vikas = (18 – 7) + 9 = 20th
Dr. Gopal walks at 4/5 of his normal speed and takes 60 mins more than the usual time. What will be the new time taken by Dr. Gopal?- a)220 mins
- b)235 mins
- c)260 mins
- d)300 mins
Correct answer is option 'D'. Can you explain this answer?
Dr. Gopal walks at 4/5 of his normal speed and takes 60 mins more than the usual time. What will be the new time taken by Dr. Gopal?
a)
220 mins
b)
235 mins
c)
260 mins
d)
300 mins
|
|
CodeNation answered |
According to the given information
4/5 of speed = 5/4 of the original time
5/4 of original time = original time + 60 mins
1/4 of original time = 60 mins
Hence, original time = 60*4 = 240 mins = 240 + 60 = 300 mins
4/5 of speed = 5/4 of the original time
5/4 of original time = original time + 60 mins
1/4 of original time = 60 mins
Hence, original time = 60*4 = 240 mins = 240 + 60 = 300 mins
If Ajay finds that it is seventeenth from the right and eighteenth from the left in a line facing north. How many persons should be added to the line such that there are 50 people in the line?- a)15
- b)16
- c)18
- d)21
Correct answer is option 'B'. Can you explain this answer?
If Ajay finds that it is seventeenth from the right and eighteenth from the left in a line facing north. How many persons should be added to the line such that there are 50 people in the line?
a)
15
b)
16
c)
18
d)
21
|
|
Codebreakers answered |
Let us assume the number of persons should be added to the line is x
17 + Ajay + 16 + x = 50
x = 16
17 + Ajay + 16 + x = 50
x = 16
Two taps can separately fill the tank in 10 min and 15 min respectively. They fill the tank in 12 minutes when a third pipe which empties the tank is also opened. What is the time taken by the third pipe to empty the whole tank?- a)12 minutes
- b)14 minutes
- c)15 minutes
- d)20 minutes
Correct answer is option 'A'. Can you explain this answer?
Two taps can separately fill the tank in 10 min and 15 min respectively. They fill the tank in 12 minutes when a third pipe which empties the tank is also opened. What is the time taken by the third pipe to empty the whole tank?
a)
12 minutes
b)
14 minutes
c)
15 minutes
d)
20 minutes
|
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Pk Academy answered |
1/10 + 1/15 – 1/x = 1/12
After solving the above equation we will get x = 12
After solving the above equation we will get x = 12
If the side of the square is increased by 30%, then how much % does its area get increased?- a)49%
- b)69%
- c)79%
- d)89%
Correct answer is option 'B'. Can you explain this answer?
If the side of the square is increased by 30%, then how much % does its area get increased?
a)
49%
b)
69%
c)
79%
d)
89%
|
|
Pk Academy answered |
Area of the plot is = 1.3 * 1.3 = 1.69 = 69%
Ajay invested an amount of Rs.9000 in a fixed deposit scheme for 2 years at CI rate 6% Per Annum. How much amount will Ajay get on maturity of the fixed amount?- a)Rs. 11, 230
- b)Rs. 10, 250
- c)Rs. 10, 112
- d)Rs. 10, 400
Correct answer is option 'C'. Can you explain this answer?
Ajay invested an amount of Rs.9000 in a fixed deposit scheme for 2 years at CI rate 6% Per Annum. How much amount will Ajay get on maturity of the fixed amount?
a)
Rs. 11, 230
b)
Rs. 10, 250
c)
Rs. 10, 112
d)
Rs. 10, 400
|
|
Pk Academy answered |
Amount = 9000*106/100*106/100
= 9000*53/50*53/50
= 10, 112
Therefore, Ajay will get on maturity of a fixed amount is Rs. 10, 112
= 9000*53/50*53/50
= 10, 112
Therefore, Ajay will get on maturity of a fixed amount is Rs. 10, 112
Poles: Magnet:: ?: Battery- a)Terminals
- b)Energy
- c)Cells
- d)Power
Correct answer is option 'A'. Can you explain this answer?
Poles: Magnet:: ?: Battery
a)
Terminals
b)
Energy
c)
Cells
d)
Power
|
|
CodeNation answered |
As magnet has poles similarly battery has terminals.
Needle: Thread:: Bike:?- a)Oil
- b)Brake
- c)Key
- d)Petrol
Correct answer is option 'D'. Can you explain this answer?
Needle: Thread:: Bike:?
a)
Oil
b)
Brake
c)
Key
d)
Petrol
|
|
Pk Academy answered |
Second is used to perform the function of first.
Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?- a)5.5 hrs
- b)6.5 hrs
- c)7.5 hrs
- d)8.5 hrs
Correct answer is option 'C'. Can you explain this answer?
Two pipes P and Q can fill a tank in 10 hours and 15 hours respectively while a third pipe R can empty the full tank in 20 hours. All the pipes are opened for 5 hours and then R is closed. Find the time in which the tank is full?
a)
5.5 hrs
b)
6.5 hrs
c)
7.5 hrs
d)
8.5 hrs
|
|
Codebreakers answered |
(1/10 + 1/15 – 1/20)*5 + (1/10 + 1/15)*T = 1.
We will get Time = 2.5 hrs
Therefore, the total time = 5 + 2.5 = 7.5 hrs
We will get Time = 2.5 hrs
Therefore, the total time = 5 + 2.5 = 7.5 hrs
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Company Wise Preparation
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