ATQ; Let the capacity of the tank be 28 litres. {LCM (14 and 28)} Efficiency of inlet pipe ‘A’ = (28/14) = 2 litres/hour Efficiency of outlet pipe ‘B’ = (28/28) = 1 litre/hour Combined efficiency of both pipes = (2 – 1) = 1 litre/hour Required time = {28 – (1 × 6)} ÷ 2 = 11 hours
Find the least number of equal sizes square tiles which can be fitted in a rectangular room whose sides are 360 m and 480 m?
The LCM of two numbers is 5 times their HCF. The sum of LCM and HCF is 180. If one of the numbers is 150, then the other number is
What should be the minimum number of chocolates so that when distributed among 3,4,5,6 and 7 children, 1,2,3,4 and 5 chocolates are left respectively?
What are the Highest Common Factor and Lowest Common Multiple of 6, 72, 120?
The LCM of two numbers is 12 times their HCF. The sum of LCM and HCF is 403 and if both the number are smaller than their LCM. Find both the numbers?
Three plots having an area of 210, 245 and 315 square meters respectively are to be sub-divided into equalised square flower beds. If the breadth of a b...
The HCF of 450 and 740 is 150, their LCM is:
The HCF of two numbers is 6 and their LCM is 84. If one of these numbers is 42, then the second number is:
Find the HCF of 36, 108, and 156.
The LCM of two numbers is 960 while their product is 7680. Find the greatest common divisor of the two numbers.
