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.Management Sciences
Category: Mensuration
An order was placed for the supply of a carper whose length and breadth were in the ratio of 3 : 2. Subsequently, the dimensions of the carpet were altered such that its length and breadth were in the ratio 7 : 3 but were was no change in its parameter. Find the ratio of the areas of the carpets in both the cases.
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A. 4 : 3
B. 8 : 7
C. 4 : 1
D. 6 : 5
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If the sides of a triangle are 26 cm, 24 cm and 10 cm, what is its area?
A. 120 cm2
B. 130 cm2
C. 312 cm2
D. 315 cm2
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Find the area of a parallelogram with base 24 cm and height 16 cm.
A. 262 cm2
B. 384 cm2
C. 192 cm2
D. 131 cm2
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Find the area of a rhombus whose side is 25 cm and one of the diagonals is 30 cm?
A. 225 sq.m
B. 360 sq.m
C. 600 sq.m
D. 480 sq.m
What will be the cost of building a fence around a square plot with area equal to 289 sq ft, if the price per foot of building the fence is Rs. 58?
A. Rs. 3944
B. Rs. 3828
C. Rs. 4176
D. None of these
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A metallic sphere of radius 12 cm is melted and drawn into a wire, whose radius of cross section is 16 cm. What is the length of the wire?
A. 45 cm
B. 18 cm
C. 90 cm
D. None of these
The volumes of two cones are in the ratio 1 : 10 and the radii of the cones are in the ratio of 1 : 2. What is the length of the wire?
A. 2 : 5
B. 1 : 5
C. 3 : 5
D. 4 : 5
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Find the area of trapezium whose parallel sides are 20 cm and 18 cm long, and the distance between them is 15 cm.
A. 225 cm2
B. 275 cm2
C. 285 cm2
D. 315 cm2
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