A tunnel has been dug through the centre of the earth and a ball is re – McqOptions

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1.	A tunnel has been dug through the centre of the earth and a ball is released in it. It will reach the other end of the tunnel after
A.	84.6 minutes
B.	42.3 minutes
C.	1 day
D.	Will not reach the other end
Answer» C. 1 day

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