What least number must be subtracted from 1936 so that the resulting number when divided by 9, 10 and 15 will leave in each case the same remainder 7? 

Two numbers are in the ratio 3: 4. If their LCM is 240, the E smaller of the two numbers is: 

A, B and C start running around a circular field having circumference 144 metre at the same time from the same point. Speeds of A, B and C are 6 m/minute, 8 m/minute and 12 m/minute. Find after how much time, they will meet again at the same point for the first time.

The HCF of two numbers is 96 and their LCM is 1296. If one of the numbers is 864, the other is

The smallest number, which when increased by 5 is divisible by each of 24, 32, 36 and 54, is 

What will be the greatest common factor of 96, 528, 2160, 3520?

What is the L.C.M of 12, 23, 24?

Two numbers are in the ratio 3 : 4. Their L.C.M. is 84. The greater number is