Question

the income A,BandC are in the ratio 7:9:12 and their spendings are in the ratio 8:9:15.if A saves 1/4th of his income then the saving of A,BandC are in the ratio of?​

Answer 1

ANSWER:-

Ratio of incomes of A: B : C = 7 : 9:12

Ratio of spending of A: B: C = 8:9: 15

Let incomes of A, B & C = 7x, 9x & 12x respectively

Let spending of A, B & C = 8v, 9y & 15y respectively

According to the question,

7x 8y =  

4

1

​  

×7x⇒7x−  

4

7x

​  

=8y

4

21x

​  

=8y→  

y

x

​  

=  

21

32

​  

 

Saving of A = 7 × 32 - 8 × 21 = 56

Saving of B = 9 × 32 9 × 21 = 99

Saving of C = 12 × 32 - 15 × 21 = 69  

Ratio of saving of A: B : C = 56 : 99: 69