What is that least value that should be added to 140 to make it exactly divisible by both 5 and 6?

Find the Highest Common Factor (HCF) of 372, 732 and 2196.

What is the year before 2001 whose calendar is the same as 2001?

Find the fraction of 0.538888...

Let A and B be two sets such that n(A – B) = 20 + x, n(B – A) = 3x and n(A∩B) = x + 1. If n(A) = n(B), then the value of (2x – 5) is:

If the HCF of the expressions (x + 3) (2x² – 3x + a) and (x – 2) (3x² + 10x – b) is x² + x – 6, then what is the value of (2a – 3b) ?