# The sum of income of A,B,C is Rs. 139200. A,B and C spend 75% , and of

A. Rs. 34000

B. Rs. 35400

C. Rs. 36800

D. Rs. 31540

### Right Answer is: C

#### SOLUTION

Given that sum of income of A,B,C is Rs. 139200

Ratio of savings of A ,B and C = 17 :12 : 8

Let saving of A = 17x

saving of B = 12x

saving of C = 8x

Now A spend 75% of his income.

This means If income of A is 4 unit , he spends 3 unit and saves 1 unit.

1 unit = 17x

4 unit = 68 x

Now B spend of his income.

This means If income of B is 7 unit , he spends 6 unit and saves 1 unit.

1 unit = 12x

7 unit = 84 x

Now C spend of his income.

This means If income of C is 11 unit , he spends 7 unit and saves 4 unit.

4 unit = 8x

1 unit = 2x

11 unit = 22 x

Sum of income = 68x + 84 x + 22 x = 174x

174 x = 139200

x = 800

Difference between salary of A and C = 68 x – 22x = 46 x

46 x =

The sum of income of A,B,C is Rs. 139200. A,B and C spend 75% , and of