7. In which of the following case, do the quantities vary directly with each other? 7. In which of the following case do the quantities vary directly with each other? August 5, 2021 Category: Chapter 13 - Direct and Inverse Proportions , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related 13. If two quantities x and y vary directly with each other, then31. If two quantities x and y vary directly with each other, then ______ of their corresponding values remains constant.43. Two quantities x and y are said to vary directly with each other if for some rational number k, xy = k.
