Question

A patrol box has tools A,B,C and D all in the ratio 4,7,3,1. If the number of A tools is 50 more than the number of C tools, then what is the total number of tools in the patrol box?
oobleck
The tools are in number 4x, 7x, 3x and x
4x = 50+3x
so, x=50 and you can now count the tools