Example 1 : If x and y are directly proportional and when x = 13, y = 39, which of the following is not a possible pair of corresponding values of x and y ? Example 1 : If x and y are directly proportional and when x = 13 which of the following is not a possible pair of corresponding values of x and y ? y = 39 August 3, 2021 Category: Chapter 13 - Direct and Inverse Proportions , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related