A water tap fills a tub in 'p' hours and a sink at the bottom empties it in 'q' hours. If p<q and both tap and sink are open, the tank is filled in 'r' hours; then
A man can do a piece of work in 30 hours. If he works with his son then the same piece of work is finished in 20 hours. If the son works alone he can do the work in
In a division sum, the divisor 'd' is 10 times the quotient 'q' and 5 times the remainder 'r'. If r = 46, the dividend will be
The sum of three consecutive even numbers is 28 more than the average of these three numbers. Then the smallest of these three numbers is
The sum of three positive numbers is 18 and their product is 162, If the sum of two numbers is equal to the third then the sum of squares of the number is
Find the cube root of (-13824)
OR
Find the value of 3√-13824