Aptitude   Area  Questions And Answers

1. How many cubes of edges 2dm can be cut out of a meter cube?

50 64 216 125

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2. The edge of three cubes of metal is 3dm, 4 dm and 5 dm. They are melted and formed into a single cube. Find the edge of the new cube?

3 dm 4 dm 5 dm 6 dm

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3. The slant height of a cone is 12 cm and radius of the base is 4cm, find the curved surface of the cone?

74 π cm2 36 π cm2 48 π cm2 24 π cm2

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4. An equilateral triangular plate is to be cut into n number of identical small equilateral triangular plates. Which of the following can be possible value of n?

196 216 256 296

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5. The sum of the interior angles of a polygon is twice the sum of its exterior angles. How many sides does the polygon have?

8 sides 9 sides 12 sides 6 sides

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6. The length of a rectangle is twice its breadth. If its length is decreased by 5 cm and breadth is increased by 5 cm, the area of the rectangle is increased by 75 sq.cm. What is the length of the rectangle?

18 cm 16 cm 40 cm 20 cm

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7. The ratio between the length and the breadth of a rectangular park is 3 : 2. If a man cycling along the boundary of the park at the speed of 12 km/hr completes one round in 8 minutes, then the area of the park (in sq. m) is:

15360 153600 30720 307200

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8. The length of a rectangle is halved, while its breadth is tripled. What is the percentage change in area?

25% increase 50% increase 50% decrease 75% decrease

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9. The diagonal of the floor of a rectangular closet is 7$ \dfrac{1}{2} $ feet. The shorter side of the closet is 4$ \dfrac{1}{2} $ feet. What is the area of the closet in square feet?

5 $ \frac{1}{4} $ 13 $ \frac{1}{2} $ 27 37

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10. The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ 26.50 per metre is Rs. 5300, what is the length of the plot in metres?

40 50 None of these Data inadequate

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