Correct Answer - Option 3 : 21 ∶ 60 ∶ 91
Given:
The ratio of Salaries of A, B and C = 2 ∶ 5 ∶ 7
Increment in salary of A = 5%
Increment in salary of B = 20%
Increment in salary of C = 30%
Formula used:
Salary after increment = old salary × [(100 + increased percent)/100]
Calculation:
Let the salary of A, B and C is 2x, 5x and 7x respectively.
New salary of A after increment = 2x × (105/100) = 210x/100
New salary of B after increment = 5x × (120/100) = 600x/100
New salary of C after increment = 7x × (130/100) = 910x/100
Now, Ratio of the salaries of A, B and C = 210x ∶ 600x ∶ 910x
⇒ 21 ∶ 60 ∶ 91
∴ The new ratio of salaries of A, B and C is 21 ∶ 60 ∶ 91 respectively.
