Correct Answer - Option 1 : Rs. 25
Given:
Rita, Geeta, and Sita complete work = 6 days.
The total amount paid = Rs. 480.
The efficiency of Rita, Geeta, and Sita = 4 ∶ 5 ∶ 7.
Concept:
The amount of money earned is proportional to the amount of work done
Calculation:
According to the given question,
Total amount earned by A, B, and C in 6 days = Rs. 480
The amount earned by them in 1 day = 480/6 = Rs. 80.
Let us assume the work done by Rita, Geeta, and Sita are 4x, 5x, and 7x.
Total work done by three friends = 4x + 5x + 7x = 16x
Total work done by Geeta = 5x
According to the concept used,
The amount paid will be proportional to the amount of work done.
The daily income of Geeta = (5x/16x) × 80
⇒ Rs. 25.
∴ The daily income of Geeta is Rs. 25.