Pillars are standing in a line such that distance between any two consecutive pillars is same. A car travelling with uniform speed of 72 km/h takes 18 seconds to reach from 1st pole to 10th pole. What is the distance between 11th and 31st pole (in meters)?

Pillars are standing in a line such that distance between any two cons

1.	Pillars are standing in a line such that distance between any two consecutive pillars is same. A car travelling with uniform speed of 72 km/h takes 18 seconds to reach from 1st pole to 10th pole. What is the distance between 11th and 31st pole (in meters)?
A.	800
B.	820
C.	840
D.	910
Answer» B. 820

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Pillars are standing in a line such that distance between any two consecutive pillars is same. A car travelling with uniform speed of 72 km/h takes 18 seconds to reach from 1st pole to 10th pole. What is the distance between 11th and 31st pole (in meters)?

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