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If a solid right circular rod of length 1 dcm is made by melting a solid silver - sphere of diameter 6 dcm, then find the radius of the rod.

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60 cm
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CALCUTTA BOOK HOUSE-SAMPLE QUESTIONS PAPERS-QUESTION
  1. Find the value of the complementrary angle of the angle 63^@ 25'15 ''.

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  2. Prove that sqrt((1+cos 390^(@))/(1-cos 30^@)) = tan 60^@ + sec 60^@

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  3. If a solid right circular rod of length 1 dcm is made by melting a sol...

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  4. The numberical values of the volume and total surface areas of a solid...

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  8. Rate of increase in polpulation of a state is 2% in a year. The presen...

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  9. Solve : 1/(a+b+x)=1/a+1/b+1/x[ x ne 0, -(a+b)]

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  10. The tens' digit of a two digit number is less by 3 than the unit digit...

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  11. The price of a diamond is ₹ 2000. The diamond is broken into two pies...

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  12. If x=3+2sqrt2, then find the value of (sqrtx -""1/sqrtx)

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  13. If a+1/b = 1 and b+1/c=1 then prove that c+1/a =1

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  14. If a, b, c be in continued proportional, then prove that a^2 b^2 c^2 (...

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  15. Prove that angles in the same segment of a circle are equal.

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  16. Prove that if two tangents are drawn to a circle from a point outside ...

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  17. ABCD is a parallelogram. A circle passing through C and D intersects A...

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  18. Construct a circle of radius 2*6cm. Take a point outside of this circl...

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  19. The length of radius of a circle is 21 cm. Determine the cfircular and...

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  20. Find the value : (tan^2 60^@+tan30^@)/(1+tan^2 60^@+tan30^@)+cos 60^@ ...

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