Test: Quantitative Techniques- 9
20 Questions MCQ Test IBPS PO Prelims- Study Material, Online Tests, Previous Year | Test: Quantitative Techniques- 9
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121 225 361 ?
112 152 192 233
So ? = 529
A man is six times as old as his son. Four years hence, the sum of their ages will be 43 years. How old is his son now?
So 7 ≡ 35
1 ≡ 5
So age of son = 5 years
Arun can climb a coconut tree by 1.5 feet by each lift; however he slips 0.5 feets every time he makes the next lift. How many lifts he will have to take to reach the top of the coconut tree. If height of tree is 18.5 feet?
Height covered in 17 lifts = (1.5 - .05) x 17 = 17 feet
Height covered in 18th lift = 1.5
so answer is 18 lift
Jogen’s taxable income for 2010-11 is rs.5,00,000. Tax rates are 1. Nil for 1st 150000; 2. 10% for 150000-300000 and 20% for the remaining. his tax liability is?
Total tax = (1,50,000) x 0 + 1,50,000 x 
⇒ 55, 000
If A is 40% more than B and B is 20% less than C then A:C is?
A : B : C
112 80 100
So A : C ⇒ 28:25
The ratio of income of A and B is 7:3 and that of their expenditure is 5:2. If both of them save Rs. 300 each. Then find the income of A?
A B
Income 7 : 3
Income 21 : 9
or
Expenditure 5 : 2
Exp 20 : 8
sav 1 : 1
1 ≡ 300
So 21 = 6300
Income of A = 6300
Original price of TV set is Rs. 9000. The price is discounted by 20% and then raised by10%. What is the new price?
= 7920
A student walks from his house at 4km/hr and reaches his school 5 mins too late, if his speed had been 5km/hr he would have reached 10 minutes too early. How far is the school from his house?
Let the distance between school and home be :- x km
The difference of time when A goes house to school with these tw different speed is 15 min.
=> 15 / 60 hour.
Therefore;
Now,
d/4 - d/5 = 15/60
5d - 4d/20 = 15/60
d/20 = 1/4
=> d = 5 km
Find the least number of 5 digits which is exactly divisible by 129?
The correct option is A.
The smallest 5-digit number exactly divisible by 129 is 10,062.
129 X 78 = 10,062
Average 
What must be added to each term of ratio 7:11, so as to make it equal to 3:4?
In a group of five boys and five girls, 3 persons are to be selected for a competition. What is the probability that all three persons are girls?
Required Probability 
Two coins are tossed simultaneously. The probability of getting at most one tail is?
A flag pole 18m high castes a shadow 9.6m long. What is the distance of the top of the pole from the end of the shadow?
Given , Flag height = 18 m
Shadow length −9.6 m
Distance between top of flag and end of shadow = x2 = 182 + 9.62
= 324+92.16
= 416.16
= (20.4)2
x = 20.4m
A box contains 2 red balls, 3 blue balls and 4 black balls. 3 balls are drawn at random. Find the probability that all balls are blue?
Required Probability 
A copper sphere of diameter 18cm is drawn into a wire of diameter 4mm. Find the length of the wire (in meter)?
h = 24,300 cm
So h = 243 meter
What is the circumference of wheel whose radius is 14cm ?
Circumference 
= 88
A dishonest dealer sys that he sells his goods at C.P, but he weighs 900gm for a kg. What is his gain %?
Required gain 
The area of a square park is 25km2. The time taken to complete a round of the field once, at a speed of 3km/hr?
Area = 25 Km2
Side = 5 Km
Perimeter = 4 x 5 = 20 Km
Time = 20/3=6h 40min
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