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.

1. Rs.500
2. Rs.600
3. Rs.700
4. Rs.800

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

1. 2.6 m
2. 3.9 m
3. 4 m
4. 4.2 m

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?

1. 10: 3
2. 13: 10
3. 7: 3
4. Data inadequate

24) If the wheel of an engine of a train 4meters in circumference makes seven revolutions in 4 seconds, what is the speed of the train?

1. 25 km/hr
2. 27 km/hr
3. 30 km/hr
4. 35 km/hr

25) If the height of a triangle is decreased by 40% and its base is increased by 40%. What will be the effect on its area?

1. No change
2. 16% increase
3. 8% increase
4. 16% decrease