16 similar writing pads and 24 similar jotter books are stacked in a pile. their total thickness is 14.4cm.Each writing pad is 3x as thick as each jotter book. what is the thickness of the pile of jotter books?

Answer 1

Thickness of jotter book = x, of pad = 3x

24x + 16(3x) = 14.4

Solve for x.

Answer 2

Sorry, i need to solve this by a non-algebraic way as we have not learnt algebra yet. Can you show me how? Tks.