@⇒ Aptitude ⇒ Area Multiple Choice Questions / Objective type questions, MCQ's, with question and answers, download free PDF, short cut notes, rapid fire notes, best theory

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Q1.	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 [Correct Answer]
B.	34, 26 [Wrong Answer]
C.	40, 32 [Wrong Answer]
D.	56, 48 [Wrong Answer]
View Answer 27 -19 Explanation:- Answer : A Discuss it below : Let breadth = x cm. Then, length = (x + 8) cm. ∴ (x + 8) x = (x + 15) (x - 4) <=> x² + 8x = x² + 11x - 60 <=> x = 20. So, length = 28 cm and breadth = 20 cm. Click here for more comments


Q2.	A room is 15 feet long and 12 feet broad. A mat has to be placed on the floor of this room leaving 1¹/₂ 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 [Correct Answer]
B.	Rs. 472.50 [Wrong Answer]
C.	Rs. 496 [Wrong Answer]
D.	Rs. 630 [Wrong Answer]
View Answer 11 -7 Explanation:- Answer : A Discuss it below : Area of the mat = [ (15 - 3) X (12 - 3)] sq. ft = 108 sq. ft. ∴ Cost of the mat = Rs. (108 x 3.50) = Rs. 378. Click here for more comments


Q3.	A rectangular plot measuring 90 metres by 50 metres is to be enclosed by wire fencing. If the poles of the fence are kept 5 metres apart, how many poles will be needed ?
A.	55 [Wrong Answer]
B.	56 [Correct Answer]
C.	57 [Wrong Answer]
D.	58 [Wrong Answer]
View Answer 9 -4 Explanation:- Answer : B Discuss it below : Perimeter of the plot = 2(90 + 50) = 280 in. ∴ Number of poles = ²⁸⁰/₅ = 56 m. Click here for more comments


Q4.	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.	2400 sq. cm [Wrong Answer]
B.	2480 sq. cm [Wrong Answer]
C.	2560 sq. cm [Correct Answer]
D.	Data inadequate [Wrong Answer]
View Answer 9 -5 Explanation:- Answer : C Discuss it below : Click here for more comments


Q5.	A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq. feet, how many feet of fencing will be required ?
A.	34 [Wrong Answer]
B.	40 [Wrong Answer]
C.	68 [Wrong Answer]
D.	88 [Correct Answer]
View Answer 7 -6 Explanation:- Answer : D Discuss it below : We have : l = 20 ft and lb = 680 sq. ft. So, b = 84 ft. ∴ Length of fencing = ( l + 2b) = (20 + 68) ft = 88 ft. Click here for more comments

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