Two trains 165 m and 175 m long run at the speed of 50 km/h and 52 km/h respectively in opposite directions on parallel tracks. What is the time (in seconds) they take to cross each other?
If two equations: 2x2 - Ax - 20 = 0 and 2x2 - 11x + 12 = 0 have one root in common, then what is the value of 'A' if the value of A is positive?
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Divya has 3 types of coins having denomination of 20p, 10p and 5p. Their numbers are in the ratio of 1: 2 : 3. If Divya has total money of Rs. 44 then how many 5p coins are there?
The difference between 42% and 23% of a number is 304. What is 72% of that number?
What is the value of 60 ÷ [{21 ÷ 7 x √(√625 + √121)} − 6] x 5 - 42 ÷ 3 x 2 = ?
Three pipes x, y and z can fill a water tanker in 20, 25 and 30 minutes respectively. All the three pipes are opened to fill the tanker and if the pipe y is closed 2 minutes before the water tanker gets filled, then in how much time will the tank get filled?
If [4x - (1/12x) = 8], then what is the value of [x2 + {1/(2304x2)}] ?
A boy throws a ball of mass 4 kg vertically downwards for a height of 20 metres. What is the velocity of the ball which touches the ground? (Take g= 10 m/s2)
Nidhi borrowed Rs. 10000 from a bank for a period of two years at the rate of 10% per annum. From that amount, she invested Rs. 3500 in another bank which offers simple interest @12.5% per annum and remaining amount she invested into a chit fund which offers compound interest of 10% per annum. What is the profit obtained by Nidhi at the end of two years?
A book was marked initially at Rs. 500 which A purchased at 8% discount. He marked up the price by 15% on his purchased price and sold after Rs. 20 discount to B. B marked up the price by 20% above his purchased price and sold to C after allowing Rs. 50.9 discount. What is the percent profit gained by B when sold to C?
Given below are the steps involved. Arrange them in the sequential order.
(A) Initial marked price of book = Rs. 500 and purchased price for A = 92% of 500 = Rs. 460
(B) Purchased price of book by B = 529 - 20 = Rs. 509
(C) Per cent profit = [(559.9 - 509)/509] x 100 = 10%
(D) Marked price of book by A = 115% of 460 = Rs. 529
(E) Marked price of book by B = 120% of 509 = Rs. 610.8 and purchased price of book by C = 610.8 - 50.9 = Rs. 559.9
Seema purchased an item for Rs.9,600 and sold it for a loss of 5 percent. From that money she purchased another item and sold it for a gain of 5 percent. What is her overall gain/ loss?
What is the angle between the hands of a clock at 8:30 a.m.?
Following data given below shows the sex ratio of India in last 10 years. Find the mode of sex ratio in India.
976, 979, 1084, 993, 1084, 993, 935, 979, 991, 979
If 7x5 - 2x4 + 3x3 - 4x2 + 6x + 2k is divisible by (x + 1), then what is the value of k?
The ratio of two numbers is 7:5 and their H.C.F. is 6. What is their L.C.M.?
From an external point O, a secant is drawn on a circle which meets the circle at points A and B respectively, if OA = 4 cm and AB = 60 cm. The length of the tangent drawn on circle from point O is (in cm)
A copper-wire when bent in the form of a square enclose an area of 121 cm2. If the same wire is bent in the form of a circle, then the area of the circle is
Table given below shows the total number of employees of four different grades in a department and average age of employees in those difference grades.
Find the average age of the employees of department P ?
What will be the percentage profit after selling an article at a certain price if there is a loss of 12.5% when the article is sold at half of the previous selling price?
If α, 3α+6, and 71α are in arithmetic progression, then find the value of α.
One-fourth of Lainey's savings in Kisan Vikas Patra is equal to one-fifth of her savings in Employee Provident Fund. How much has she saved in Employee Provident Fund, if she has a total savings of ₹ 180,000?
When 20% of 40% of half of a number 'm' is added to 3/4th of 20% of itself, then a second number is obtained which is 21 less than the 40% of m. What is the difference between first and second number?
What will come in place of (?) in this equation?
125% of [{? + 200 ÷ (16 ÷ 2 x 4 x (1/8))} ÷ 7.5 x 8 ÷ (18 ÷ 3 - 50% of 4)] = ?
If cos (900 - θ)/cos (300 + θ) = 1, then the value of sin θ + cos 2θ
A fraction is such that if it is squared and then the numerator is divided by 2, while the denominator is increased by 25%, the new fraction thus obtained is 4 times the original fraction. What is the new fraction?
What should come in place of question mark (?) in the following series?
15, 17, 23, 35, 55, (?)
How much does a watch lose per day, if its hands coincide every 65 minutes?
Fifteen years hence, the ratio of the ages of a man and his son will be 2:1. If the present age of the man is 45, then what is his son's present age?
Ramesh can do 20% more work as Mohan can do in same time. If Mohan can finish the work in 30 hours then Ramesh with the help of Mohan, can finish the same work in how many hours ?