Question

If 6 persons working 8 hours a day earn Rs.8400 per week, then how much will 9 persons working 6 hours a day each per week ?

• A. Rs.9250
• B. Rs.9350
• C. Rs.9450
• D. Rs.9550

Answer 1

The correct option is C Rs.9450

6 persons working 8 hours a day earn Rs.8400 in a week

6 persons working 1 hour a day earn $Rs.\frac{8400}{8}$ in a week

$\therefore$ 1 person working 1 hour a day earns $Rs.\frac{8400}{6\times 8}$ in a week (less persons, less days, less earnings)

1 person working 6 hours a day earns Rs. $Rs.\frac{8400}{6\times 8}$ in a week

$\therefore$ 9 persons working 6 hours a day each Rs.$Rs.\frac{8400\times 9\times 6}{6\times 8}$ in a week (more persons, more hours, more earing)

= Rs.9450