Question

the ratio of the income of rahul and keshav is 5:4 . if rahuls income is Rs 18000, what is the income of keshav

Answer 1

given ratio of income is 5:4
Rahul income 18000
let keshav income be x
=> 18000/x = 5:4
=> 18000(4/5) = x
=> x= 14400
so income of keshav is 14400rupees

Answer 2

18000=5x
Cx = 18000/5=3600
Kesavs income=4x=4*3600=14400 rippers.