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45 pillars are standing in a line such t...

45 pillars are standing in a line such that distance between any two consecutive pillars is same. A car travelling with unifom speed of 72km/h takes 18 seconds to reach from 1st pole to 10th pole. What is the distance between 10th and 31st pole (in metres)?

A

800

B

820

C

840

D

910

Text Solution

Verified by Experts

The correct Answer is:
D
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