Question
Two pipes X and Y can fill a cistern in 21 hours and 24
hours, respectively. The pipes are opened simultaneously, and it is found that due to a leakage in the bottom, it takes 48 minutes more to fill the cistern. When the cistern is full, in how much time will the leak empty it if no pipe is open during that time?Solution
Determine the smallest possible value of 'P' that makes the eight-digit number '4423P456' fully divisible by 3.
A = (9/4) × B and C = (1/12) × A. If (A + B + C) = 300, then find the value of (12C – B).
Find the value of 'a' in the given data if the mean of the given data is 27.
20, 25, 30, 28, 26, 24, a, 29, 22, 23
There are balls of three colours: blue, green, and white. The number of green balls is 8 more than the average number of balls of each colour. The numbe...
A farmer has 1457 cows and 3055 buffaloes. He wants to graze them in minimum number of groups in such a way that each group has only one type of animal ...
- What is the sum of digits of the maximum 3-digit number that leaves 5 as remainder when divided by 10, 15, and 12?
a, b and c are three integers. The sum of a and b is 61. If b is divided by a then the quotient is 2 and the remainder is 7. If cn - 2 is lar...
Which pair of these numbers is cop rime?
Find the sum of all natural numbers less than 1,000 that are divisible by both 3 and 5 but not by 7.
- 35% of 45% of 640 = z + 20.2, what is the sum of the squares of the digits in ‘z’?
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