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The side of a cube is halved. By what pe...

The side of a cube is halved. By what percent will its surface area decrease ?

A

0.5

B

0.75

C

0.25

D

Surface area remains same

Text Solution

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The correct Answer is:
B
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MTG IIT JEE FOUNDATION-MENSURATION-Exercise (Multiple Choice Questions) LEVEL-1
  1. The length of a rectangular plot is 60% more than its breadth. If t...

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  2. A rectangular parking space is marked out by painting three of its ...

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  3. The difference between the length and breadth of a rectangle is 23 m. ...

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  4. The length of a rectangular plot is 20 metres more than its breadth...

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  5. The capacity of a tank of dimensions (8 m xx 6 m xx 2.5 m) is

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  6. Find the surface area of a 10 cm xx 4 cm xx 3 cm brick.

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  7. Find the surface area of a cuboid 16 m long, 14 m broad and 7 m high.

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  8. The diagonal of a cube is 6 sqrt3 cm. Find its volume.

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  9. Find the total surface area of a cylinder with diameter of base 7 cm a...

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  10. The edges of a cuboid are in the ratio 1 : 2 : 3 and its surface area ...

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  11. The side of a cube is halved. By what percent will its surface area de...

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  12. An open cylindrical tank is of radius 2.8 m and height 3.5 m. What is ...

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  13. The length of the longest rod that can be put in a box of dimensions 1...

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  14. What is the area of the region of the circle which is situated outside...

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  15. It is required to fix a pipe such that water flowing through it at ...

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  16. In the given figure , ABCD is a trapezium in which the parallel sides ...

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  17. The height of the hall is 13 m and the perimeter of its floor is 430 m...

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  18. A cuboidal vessel is 22 meter long and 10 meter wide. How high must it...

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  19. What is the formula for finding the surface area of an open cylinder w...

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  20. The area of a rhombus is 840 cm^2 and one of its diagonals is 14 cm, f...

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