Table of Contents

Area Aptitude Test Paper 5

21) A 20 m long, and 15 m broad hall is surrounded by a verandah with a uniform width of 2.5 m. Find the cost of flooring the verandah at Rs. 3.50 per square meter.

Rs.500
Rs.600
Rs.700
Rs.800

Answer: C

Explanation:

Length of the hall = 20 m,

Breadth of hall = 15 m,

Area of hall = L x B = 20 x 15 = 300 m²

Length of hall with verandah = 20 + 2.5 + 2.5 = 25 m,

Breadth of hall with verandah = 15 + 2.5 + 2.5 = 20 m,

Area of hall with verandah = 25 x 20 = 500 m²

Area of verandah = area of hall with verandah – area of hall

= 500 – 300 = 200 m²

Cost of flooring the verandah is Rs. 3.50 per square meter.

So, the cost of flooring the entire verandah = 3.50 * 200 = Rs. 700

22) The height of a room to its semi-perimeter is 2: 5. It costs Rs. 260 to paper the walls of the room with paper 50 cm wide at Rs. 2 per meter allowing an area of 15 cm² for doors and windows. The height of the room is

2.6 m
3.9 m
4 m
4.2 m

Answer: C

Explanation:

23) The area of a rectangular plot is increased by 30% and its width remains as it was before. What will be the ratio between the area of the new rectangle and the original rectangle?

10: 3
13: 10
7: 3
Data inadequate

Answer: B

Explanation:

Let the length and breadth of the rectangular plot be x and y respectively.