Question

why we draw two crossed line on the cheque?

Answer 1

A crossed check is any check that is crossed with two parallel lines, either across the whole check or through the top left-hand corner of the check. This symbol means that the check can only be deposited directly into a bank account and cannot be immediately cashed by a bank or any other credit institution.

Answer 2

find a median of 21, 22, 8, 16, 6, 15, 10, 25, 9