1. If 21y5 is a multiple of 9, where y is a digit, what is the value of y? 1. If 21y5 is a multiple of 9 what is the value of y? where y is a digit October 13, 2020 Category: Chapter 16 - Playing with Numbers , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related