Question
A solid circular metallic disc of radius 12 inches and
thickness 4 inches is melted and shaped into a solid disc of radius 16 inches. What is the thickness of the new disc in inches?Solution
Volume of cylinder = volume of disk therefore, πr2h = πr2h h = (12 × 12 × 4)/(16 × 16) = 2.25 inches
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Unauthorised leaks, hacking and other cybercrimes have _________ data bases vulnerable.
(A) fulfilled
(B) left
_______ you leave now, you will be late.
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_____________ my car is very old, it still runs very well.
1) happening
2) in
3) for
4) about
5) None of these
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(A) risks (B) chances �...
Select the most appropriate option to fill in the blank.
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