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If surface area of a sphere is A sq.unit...

If surface area of a sphere is A sq.unit then length of the diameter will be

A

`sqrt(A/pi` unit

B

`sqrt(pi/4)` unit

C

`4 pi` unit

D

`pi/4` unit

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UNITED BOOK HOUSE-RAMKRISHNA MMISSION BOYS SCHOOL-EXERCISE
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  2. Circular value of 67 1^@/2 is

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  3. If surface area of a sphere is A sq.unit then length of the diameter w...

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  4. Mean of the prime numbers between 1 and 10 is

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  6. Fill in the blanks No. of real roots of 3x^2+4=0 is.

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  7. Fill in the blanks Maximum number of common tangent of two intersecti...

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  8. Fill in the blanks Value of tan 15^@xxtan 45^@xxtan60^@xxtan75^@is.

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  9. Fill in the blanks No. of surface of a solid right circular cone is.

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  10. Fill in the blanks If (sumxi)/n= barx then (sum(xi-a))/n-.

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  11. Write True or False At present the population of a city is P and rat...

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  12. Write True or False Mean proportional of -1/12 and -1/75 is +-1/30.

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  13. Write True or False Simplified value of (sec theta+ tan theta)(1-sin...

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  14. Write True or False Two differenct Rhombuses are always similar.

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  15. Write True or False Total surface area of a hemisphere is 36 pisq.m ...

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  16. Write True or False Graph of cumulative frequency is called an ogive...

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  17. The rate of simple interest per annum reduces from 4% to 3 3/4% and fo...

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  18. A and B invest Rs(a+b)^2 and Rs (a^2+b^2) in a business. After 1 year ...

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  19. Product of root of (m-2)x^2-(m-3)x+(m+1)=0 is thrice of their sum . Fi...

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  20. Arrange in descending order: root(9)(7),root(6)(5),root(3)(2).

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