Area Problems If the sides of a squares is increased by 25%, then the area of the squares will be increased by 56.25% 125% 53.75% 50% 56.25% 125% 53.75% 50% ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required increment = 2a + [a2 / 100] %= 2 x 25 + [(252)/100)] %= 50 + (625/100)% = 56.25%
Area Problems The ratios of areas of two squares, one having its diagonal double than the other is 4:1 3:1 2:1 2:3 4:1 3:1 2:1 2:3 ANSWER DOWNLOAD EXAMIANS APP
Area Problems Find the area of a rectangle having 15m length and 8m breadth. 115 sq m 120 sq m 111 sq m 125 sq m 115 sq m 120 sq m 111 sq m 125 sq m ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Required area = Length x Breadth= 15 x 8 = 120 sq m
Area Problems The length of a rectangle is double while its breadth is halved. What is the percentage change in area? No change 75 None of these 50 No change 75 None of these 50 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Let length = l and breadth = bThen, area = lb New length = 2lAnd new breadth = b/2 ? New area = ( 2l ) x (b/2) = lbSo, there is no change in area .
Area Problems The Number of rounds that a wheel of diameter 7/11 m will make in going 4 km, is? 1700 1500 2000 1000 1700 1500 2000 1000 ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Number of round = total distance / circumference of wheel.= (4 x 1000) / ?d= (4 x 1000) / ( 22/7 x 7/11) = 2000
Area Problems One side of a parallelogram is 14 cm. Its distance from the opposite side is 16 cm. The area of the parallelogram is? 112 sq. cm 56? sq. cm 224 sq. cm 210 sq. cm 112 sq. cm 56? sq. cm 224 sq. cm 210 sq. cm ANSWER EXPLANATION DOWNLOAD EXAMIANS APP Area of parallelogram = Side of parallelogram x distance from the opposite side= 14 x 16 cm2= 224 cm2
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