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If the radius of a circle is doubled,...

If the radius of a circle is doubled, its area is increased by (a) 100%        (b) 200%       (c) 300%      (d) 400%

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RS AGGARWAL-AREA-All Questions
  1. If the radius of a circle is increased by 200%, then its area will ...

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  2. If the radius of a circle is diminished by 10%, then its area is di...

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  3. If the radius of a circle is doubled, its area is increased by (a) ...

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  4. If the radius of a circle is increased to 3 times, then how many ti...

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  5. If the circumference of a circle increases form 4pi to 8pi , what ...

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  6. If the circumference of a circle is increased by 20%, what will be ...

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  7. If the circumference of a circle is decreased by 50% then the perce...

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  8. Three equal circles are described with vertices of the triangles as...

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  9. Three circles each of radius 3.5 cm are drawn in such a way that each ...

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  10. Four circles each of radius ' a ' units touch one another. The area ...

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  11. Four horses are tethered at four corners of a square plot of side 6...

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  12. In the adjoining figure, if the radius of each of the four outer cir...

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  13. Four equal circles are described at the four corners of a square so...

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  14. In order to reach his office on time, Mr. Roy goes through the midd...

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  15. A kite-shaped quadrilateral of the largest possible area is cut fro...

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  16. A cow is tethered at point A by a rope. Neither the rope nor the cow i...

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  17. A cow is tethered at point A by a rope. Neither the rope nor the cow i...

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  18. Two identical circles intersect so that their centers, and the points,...

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  19. A one-rupee coin is placed on a plain paper. How many coins of the ...

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  20. A skating champion moves along the circumference of a circle of rad...

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