[Revenue Patwari Pre Aug, 2021]

5. It is required to construct a big rectangle hall to accommodate 500 persons, allowing 22.5 m space per person. The height of the hall to be kept at 7.5 m, while the total inner surface area of the walls must be 1200 m². Then the length and breadth of the hall respectively are :

1. 40 m and 30 m

2. 45 m and 35 m

3. 50 m and 30 m

4. 60 m and 20 m

Correct Answer :

50 m and 30 m