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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 :
Which of the following is a pair of co-primes ?
The smallest number which when diminished by 7, is divisible by 12, 16, 18 and 21 ?.
Three numbers are in the ratio 1:2:3 and their H.C.F. is 12. The numbers are :
252 can be expressed as a product of primes as :
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 H.C.F. of 1.75, 5.6 and 7 is :
Four different electronic devices make a beep after every 30 minutes, 1 hour, 1.5 hour and 1 hour 45 minutes respectively. All the devices beeped together at 12 noon. They will again beep together at:
Which of the following has most number of divisors ?
Product, of two co-prime numbers is 117. Their L.C.M. should be :
The H.C.F. of two numbers is 23 and the other two factors of their L.C.M. are 13 and 14. The larger of the two numbers is :
The LCM of two numbers is 45 times their HCF. If one of the numbers is 125 and the sum of HCF and LCM is 1150, the other number is :
The H.C.F. of 2/3, 8/9, 64/81 and 10/27 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 sum of two numbers is 528 and their H .C.F. is 33. The number of pairs of numbers satisfying the above conditions is :