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

we can write the statment as

5x(rahul's income) + 4x(Keshav's income) = 18000 + 4x
 
To find x

5x = 18000
x = 18000/5
x = 3600

Therefore, income of Keshav is 4x = 4 * 3600 = 14400 rupees

Answer 2

let the ratio 5:4 be in x
then, Rahul's income is 5x and Keshav's income is 4x
therefore 5x = 18000
x = 18000/5 =3600
now, Keshav's income is 4x = 4×3600
= 14400 (ans)