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(IGP) IAS Pre Paper - 2: GS - Basic Numeracy - Area of Plane Figures (MCQ -15)
Basic Numeracy
	Area of Plane Figures (MCQ -15)
1. A rectangular carpet has an area of 120 sq.metres 
and a perimeter of 46 metres. The length of its diagonal is:
(a) 15 m 
(b) 19 m
(c) 17 m 
(d) 22 m
2. A took 15 seconds to 
			cross a rectangular field diagonally walking at the rate of 52m/min 
			and B took the same time to cross the same field along its sideswalking at the rate of 68m/min. The area of the field is:
			(a) 52 m2 
			(b) 40 m2
			(c) 61 m2 
			(d) 60 m2
3. A rectangular carpet has an area of 
			60 sq. m. If its diagonal and longer side together equal 5 times the 
			shorter side, the length of the carpet is: 
			(a) 8 m 
			(b) 12 m
			(c) 15 m 
			(d) 14.5 m
4. The ratio between the 
			length and the breadth of a rectangular field is 3 : 2. If only the 
			length is increased by 5 metres, the new area of the field will be 
			2600 sq. metres. What is the breadth of the rectangular field? 
			(a) 40metres 
			(b) 80metres
			(c) 66metres
			(d) cannot be determined
5. The length of a 
			blackboard is 8 cm more than its breadth. If the length is increased 
			by 7 cm and breadth is decreased by 4 cm, the area remains the same. 
			The length and breadth of the blackboard (in cm) will be:
			(a) 28, 20 
			(b) 36, 26
			(c) 40, 32 
			(d) 58, 48
6. A towel, when bleached, was found to 
			have lost 20% of its length and 10% of its breadth. The percentage 
			of decrease in area is:
			(a) 11% 
			(b) 12%
			(c) 20% 
			(d) 28%
7. If the area of a rectangular plot 
			increases by 30% while its breadth remains same, what will be the 
			ratio of the areas of new and old figures?
			(a) 4 : 3 
			(b) 5 : 1
			(c) 4 : 7
			(d) 11 : 13 
8. A typist uses a sheet measuring 20 
			cm by 30 cm lengthwise. If a margin of 2 cm is left on each side and 
			a 3 cm margin on top and bottom, then percent of the page used for 
			typing is:
			(a) 40 
			(b) 70
			(c) 64 
			(d) 75
9. A room is 15 feet 
			long and 12 feet broad. A mat has to be placed on the floor of this 
			room leaving 1½ feet space from the walls. What will be the cost of 
			the mat at the rate of Rs. 3.50 per square feet?
			(a) Rs. 378 
			(b) Rs. 638
			(c) Rs. 496 
			(d) Rs. 635
10. What will be the cost of gardening 
			1metre broad boundary around a rectangular plot having perimeter of 
			340 metres at the rate of Rs. 10 per square metre?
			(a) Rs. 1900 
			(b) Rs. 3600
			(c) Rs. 3440 
			(d) cannot be determined
11. 2 metres broad 
			pathway is to be constructed around a rectangular plot on the 
			inside. The area of the plot is 96 sq. m. The rate of construction 
			is Rs. 50 per square metre. Find the total cost of the construction.
			(a) Rs. 3600 
			(b) Rs. 5000
			(c) Rs. 4800 
			(d) data inadequate
12. Within a rectangular garden 10 m 
			wide and 20 mlong,wewish to pave awalk around the borders of uniform 
			width so as to leave an area of 96 m2 for flowers. How wide should 
			the walk be?
			(a) 3.2 m 
			(b) 2 m
			(c) 2.7 m 
			(d) 3.5 m
13. A rectangular lawn 
			55 m by 35 m has two roads each 4 m wide running in the middle of 
			it, one parallel to length and the other parallel to breadth. The 
			cost of gravelling the roads at 75 paise per sq. metre is:
			(a) Rs. 257.50 
			(b) Rs. 258
			(c) Rs. 262.50 
			(d) Rs. 275
14. A rectangular park 
			60m long and 40 m wide has two concrete crossroads running in the 
			middle of the park and rest of the park has been used as a lawn. If 
			the area of the lawn is 2109 sq. m, then what is the width of the 
			road? 
			(a) 4.50 m 
			(b) 4 m
			(c) 6.50 m 
			(d) None of these
15. A housing society has been allotted 
			a square piece of landmeasuring 2550.25 sq.m.What is the side of the 
			plot? 
			(a) 52.65 m 
			(b) 50.5 m
			(c) 50.65 m 
			(d) 50.15 m
16. The cost of cultivating a square 
			field at the rate of Rs. 135 per hectare is Rs. 1215. The cost of 
			putting a fence around it at the rate of 75 paise permetre would be
			(a) Rs. 480 
			(b) Rs. 815
			(c) Rs. 900 
			(d) Rs. 1900
17. The length and breadth of a 
			rectangular park are 15 m and 8 m respectively. The perimeter of the 
			park is
			(a) 40 m 
			(b) 42 m
			(c) 44 m 
			(d) 46 m
18. One side of a rectangular lawn is 12 
			m and the diagonal is 13 m. Find the area of the field
			(a) 30 m2 
			(b) 45 m2
			(c) 60 m2 
			(d) 90 m2
19. The length of a rectangle is 1 cm 
			more than its breadth. The diagonal is 29 cm. Find the area of the 
			rectangle
			(a) 481 cm2 
			(b) 841 cm2
			(c) 420 cm2 
			(d) 870 cm2
(a) 99 m2
(b) 100 m2
(c) 101 m2
(d) 102 m2
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