If one afternoon mike gauthier decides to dig a hole through the earth to china for a game of ping pong, how many centuries would elapse before he got there if he dug at a rate of 0.400 miles depth per day and the diameter of the earth is 1.2700 e 7 m?

0.54 centuries

Diameter of the Earth

The rate at which it is digged

The number of centuries it would take to dig =Distance to be digged/ rate at which it is digged.

Distance to be digged = diameter of the Earth (because 1 m=0.00062 miles)

Number of days it would take to dig

Therefore, it would take 0.54 centuries to dig through to China.

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