Question

Shubhra thinks of a number. She says "75 is a multiple of my number and 15 is a factor". Which of these numbers is definitely another multiple of Shubhra's number? (Note: You need not find Shubhra's number.)

Answer 1

If 75 is a multiple of Shubhra's number and 15 is a factor, then another multiple of Shubhra's number can be found by multiplying 75 by any positive integer.

So, any number that is a multiple of 75 will definitely be another multiple of Shubhra's number.