Question

Three people have different amounts in their accounts in the ratio 4 : 5 : 7. They got interests on these amounts as 20%, 17%, and 35% respectively. What will be the new ratio in their accounts after a year?
1. 32 : 39 : 63
2. 22 : 43 : 58
3. 22 : 31 : 43
4. 41 : 32 : 64
5. 31 : 41 : 65

Answer 1

Correct Answer - Option 1 : 32 : 39 : 63

Given:

Amount ratio = 4 : 5 : 7

Interest rates = 20%, 17%, 35%

Calculation:

Let the amounts be 400, 500 ,and 700 

∴ 120% of 400 = 480

117% of 500 = 585

135% of 700 = 945

Required ratio = 480 : 585 : 945 = 32 : 39 : 63

∴ The answer is 32 : 39 : 63