Question

Salaries of ajay and vijay together amount to 12000. Ajay spends 80% of his salary while vijay spends 90% of his salary. If their savings are equal, then find out salary of each

Answer 1

Formula:

spending-income=saving

equations

1)ajay spending=x

2)vijay spending=y

3)x+y=12000

4)ajay spending=80/100 *x

5)vijay spending=90/100 *y

6)savings of both=a

solution:

a=a

80/100 *x - (12000-y) = 90/100 *y - (12000-x)

substituting value of x from equation 3

-0.8y+9600-12000+y=90/100 *y - y

-2400=-0.3y

y=8000

calculation ajay's salary from equation 3

x=12000-8000

x=4000