What will come in place of the question mark (?) in the

The product of two numbers is 5760 and their GCD is 48. What is the LCM?

What is the minimum number of square marbles required to tile a floor of length 2 metres 8cm and width 2 metres 86 cm?  

The smallest number which when divided by 25 and 30 leaves remainder 10 and 15 respectively is:

Three numbers a, b and c are co-prime to each other such that ab = 76 and bc = 133. Find the value of (a + b + c).

Find the greatest number which when divide 28, 82 & 109 leave a same remainder 1 in each case?

Sum of the two numbers is 80. LCM and HCF of that two number is 168 and 8 respectively. Find the difference of the numbers?

Find the LCM of x² – 8x + 15 and x² – 5x + 6 is.