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If the radius of a circle be increased b...

If the radius of a circle be increased by 75%, then the change of its perimeter is

A

25% increase

B

50% decrease

C

75% increase

D

150% decrease

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CALCUTTA BOOK HOUSE-CIRCUMFERENCE OF CIRCLES-EXERCISE-2
  1. A horse travelled a circular field in 1(1)/(2) minutes at a speed of 6...

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  2. The diameter of a circular wire is 5 dcm 6 cm. If the wire be bented i...

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  3. If the radius of a circle be increased by 3 times, then how many times...

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  4. If the area of square between a circular and a square field of equal p...

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  5. If the radius of a circle be increased by 75%, then the change of its ...

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  6. The breadth of a ractangle is 44 m, its length is 2(1)/(2) times of it...

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  7. The difference of the circumference of a circle and its radius is 74 c...

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  8. The sum of the length of the circumference of a semi-circular bow and ...

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  9. A well is drugged on a square field of side 4.2 m. Find the expenditur...

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  10. The time required to travel a circular field along its diameter is 30 ...

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  11. There is a path around a circular garden. The outer circumference of t...

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  12. The difference of the circumference of two circles is 22 m and the sum...

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  13. The circumference of a circle is 1(1)/(2) times of another circle and ...

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  14. The wheel of a vehicle revolves at a rate of 500 times per minute. If ...

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  15. Two hands of a clock are of length 5 cm and 4 cm. How more distance th...

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  16. The circumference of the outer edge of a path which is around a circul...

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  17. The times required to travel a circular path of breadth 8 m along the ...

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  18. The radius of the front wheel of an engine is 35 cm and the radius of ...

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