Question

The ratio of managers to management trainees is 3:5.when 21 new management trainees are recruited the ratio will be become 3:8,how many managers will there be in the group?

Answer 1

let the no. of managers and management trainees be 3x and 5x.

5x+21=8x

-3x=-21

x=7

so , no. of managers=3*7=21

and no. of management trainees=5*7=35