The least number which when divided by 4, 6, 8, 12 and 16 leaves a remainder of 2 in each case is: 

Two pipes of length 36 metre and 40 metre are to be cut into equal pieces without leaving any extra length of pipe. Find the number of such pieces if pipes are to be cut of maximum length.

Three men step off together from the same spot. Their steps measure 63 cm, 70 cm and 77 cm respectively. The minimum distance each should cover so that all can cover the distance in complete steps is 

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

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? 

Find the total number of Prime Factors of 720 ? 

Three numbers which are co-prime to one another are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is: 

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