Question

pls show the procedure

Answer = 40, 50

Pls help pls..... ​

Answer 1

Answer:

let the no.be x

4x 5x

4x+5x =90

9x=90

x=10

4x=40

5x=50

Answer 2

Answer:

both the Angeles are in a ratio of 4:5 the angles can simply be 40 and 50 or 80 and 100