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Areas Questions and Answers
Q1. The difference between the length and breadth of a rectangle is 23 m. If its perimeter is 206 m, then its area is:
A. 2480 sq.m
B. 2420 sq.m
C. 2520 sq.m
D. 1520 sq.m
Q2. A room is 15 feet long and 12 feet broad. A mat has to be placed on the floor of the room leaving 3/2 feet space from the walls. What will be the cost of the mat at the rate of Rs. 3.50 per squire feet ?
A. Rs. 472.50
B. Rs. 378
C. Rs. 630
D. Rs. 496
Q3. 50 square stone slabs of equal size were needed to cover, a floor area of 72 sq. m. The length of each stone slab is :
A. 120 cm
B. 102 cm
C. 210 cm
D. 201 cm
Q4. 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. 20:13
B. 13:10
C. 15:7
D. 32:17
Q5. What is the least number of squares tiles required to pave the floor of a room 15 m 17 cm long and 9 m 2 cm broad ?
A. 840
B. 820
C. 814
D. 844
Q6. The diagonal of the floor of a rectangular closet is 15/2 feet. The shorter side of the closet is 9/2 feet. What is the area of the closet in square feet ?
A. 27
B. 37
C. 10/4
D. 37/2
Q7. The ratio between the perimeter and the breadth of a rectangle is 5 : 1. If the area of the rectangle is 216 sq. cm, what is the length of the rectangle ?
A. 30 cm
B. 24 cm
C. 16 cm
D. 18 cm
Q8. A rectangular paper when folded into two congruent parts had a perimeter of 34cm for each part folded along one set of sides and the same is 38cm. When folded along the other set of sides. What is the area of the paper ?
A. 140
B. 560
C. 240
D. 190
Q9. The length of a rectangular plot is 60% more than its breadth. If the difference between the length and the breadth of that rectangle is 24 cm, what is the area of that rectangle ?
A. 2600 sq. cm
B. 2400 sq. cm
C. 2560 sq. cm
D. 2480 sq. cm
Q10. The length of a rectangle is decreased by r% , and the breadth is increased by (r + 5)%. Find r , if the area of the rectangle is unaltered.
A. 5
B. 8
C. 10
D. 20
