Question

n=? asa in cat 15 supra n +4 = 5 supra 4; n+2 supra 6 = 1 supra 2

Answer 1

15/(n=4)=5/4
4*15=5*(n+4)
60=5n+20
5n=40
n=40/5
n=8

(n+2)/6=1/2
2(n=2)=6
2n+4=6
2n=6-4
2n=2
n=2/2
n=1