Question

Total salary of three persons A,B and C is Rs. 1,44,000. They spend 80%,
85% and 75% respectively. If their savings are in the ratio 8 : 9 : 20, find C's salary.

Answer 1

Hello Friend ,
Your Ans is below   
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us assume that their savings are 8k, 9k and 20k respectively.

A spends 80% of his salary. Thus he saves (100 – 80 = 20%) of his salary. So, 20% = 8k. Therefore, A’s total salary i.e. 100% = 40k.

B spends 85% of his salary. Thus he saves (100 – 85 = 15%) of his salary. So, 15% = 9k. Therefore, B’s total salary i.e. 100% = 60k.

C spends 75% of his salary. Thus he saves (100 – 75 = 25%) of his salary. So, 25% = 20k. Therefore, C’s total salary i.e. 100% = 80k.

According to the question, 40k + 60k + 80k = 1,44,000
180k = 144000
k = 800

Thus, C’s salary = 80k = 80 x 800 = 64,000 (Answer)
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Answer 2

let salary be A ,B and C then A/B =2/3 and B/C =3/4 .
salary of C =144000*4/(2+3+4) =64000