Online practise test contains 15 random questions. Read the questions carefully and check the relevant options. After submitting, your test will be processed and results will be displayed.
Product, of two co-prime numbers is 117. Their L.C.M. should be :
Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two a 1073. The sum of the three numbers is :
A number a is said to be perfect if the sum of all its divisors (excluding n itself) is equal to n. An example of perfect number is :
Three different containers contain 496 litres, 403 litres and 713 litres of mixtures of milk and water respectively. What biggest measure can measure all the different quantities exactly ?
The L.C.M. of two numbers is 45 times their H C.K. If one of the numbers is 125 and the sum of H.C.F. and L.C.M. is 1150, the other number is :
The L.C.M. of 22, 54, 108, 135 and 198 is :
The maximum number of students among them 1001 pens and 910 pencils can be distributed in such a way that each student gets the same number of pens and same number of pencils is :
The least rubber which is a perfect square and is divisible bv each of the numbers Jo, 20 and 24, is :
Find the least number which when divided by 16, 18; 20 and 25 leaves 4 as remainder in each case, but when divided by 7 leaves no remainder.
The H.C.F. of 204, 1190 and 1445 is :
252 can be expressed as a product of primes as :
Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?
The H.C.F. of 3666 and 3444 is :
The H.C.F. and L.C.M of two numbers are 11 and 385 respectively. If one number lies between 75 and 125, then that number is :
The H.C.F. of two numbers is 11 and their L.C.M. is 7700. If one or the numbers is 275, then the other is :