Select the most appropriate opposite of the given

The least number which when divided by 6, 8, 9 and 12 leave zero remainder in each case and when divided by 13 leaves a remainder of 7 is:

The least number which when divided by 4, 8, 10 and 12 leave zero remainder in each case and when divided by 13 leaves a remainder of 9 is:

The smallest number which when divided by 22 and 34 leaves remainder 10 and 22 respectively is:

What is the minimum number of square marbles required to tile a floor of length 4 metres 35cm and width 3 metres 60 cm?  

Find the total number of Prime factor in the given expression?

3¹⁵ × 5⁶ × 6⁸

Three numbers a, b and c are co-prime to each other such that ab = 78 and bc = 65. Find the value of (a + b + c).

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 least number of four digits which is exactly divisible by 5, 15 and 25?