The operating system that is self-contained in a device

Three numbers a, b and c are co-prime to each other such that ab = 88 and bc = 33. Find the value of (a + b + c).

The greatest number, which when subtracted from 1063, gives a number exactly divisible by each of 15, 20, 30 and 35, is:

Find the difference between sum of digits of LCM and HCF of 16, 40 and 64.

Three numbers a, b and c are co-prime to each other such that ab = 70 and bc = 45. Find the value of (a + b + c).

Find the smallest number which when divided by 3, 4, 5 and 6 gives remainder ‘2’ in each case?

The LCM of two numbers is 4 times of their HCF. The sum of LCM and HCF is 280. If one of the number is 224, then the other number is:

Three numbers are in the ratio 5:3:2 respectively. If the HCF of the numbers is 4, then find the LCM of the numbers.

Sum of the two numbers is 49 and their HCF and LCM are 7 and 70, respectively. Find the sum of reciprocal of the given two numbers.