28. A four-digit number abcd is divisible by 11, if d + b = _______ or _____ 28. A four-digit number abcd is divisible by 11 if d + b = _______ or _____ August 11, 2021 Category: Chapter 16 - Playing with Numbers , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related