71. It is given that l varies directly as m. (i) Write an equation which relates l and m. (ii) Find the constant of proportion (k), when l is 6 then m is 18. 71. It is given that l varies directly as m. (i) Write an equation which relates l and m. (ii) Find the constant of proportion (k) when l is 6 then m is 18. August 5, 2021 Category: Chapter 13 - Direct and Inverse Proportions , Maths , NCERT Class 8 , Facebook Messenger WhatsApp Share this:TwitterFacebook Related