self Maths Puzzle

How many times, minutes hand crosses hour's hand between 12 o'clock noon to 12 o' clock mid night?

Read Solution (Total 1)

self Other Question

A six-digit number is formed using all the Six digits 2, 3, 4, 5, 7,8.what is the probability that it is divisible by 11? ABC
*ABC
-------
---ABC

where C is not odd.