Question

The cost of 2 red balls and 5 blue balls is ₹160. The correct expression for this is ______ such that 'r' represents cost of one red ball and 'b' represents cost of one blue ball.

Answer 1

Let the cost of 1 Red ball be 'r' and let the cost of 1 Blue ball be 'b'.

So, the algebraic expression will be $2r+5b$
and, the algebraic equation will be $2r+5b=160$