A train is travelling at 45 km h and crosses a pole in 12 seconds. Find the length of the train.

Given, Speed of the train = 45 km / hr = 45 × 5 18 m / sec = 12 . 5 m / s Time taken to cross the bridge = 12 seconds Therefore, the distance covered by the train = 12 . 5 × 12 = 150 m Thus, the length of the bridge = 150 m

A bus moves at 36 km h and a train moves at 15 m s . Find the ratio of their speeds.

Given, Speed of bus = 36 km / hr Speed of train = 15 m / s We know that, 1 km / hr = 5 18 m / s 36 km / hr = 36 × 5 18 m / = 10 m / s Ratio of speeds = Speed of bus Speed of train = 10 15 = 2 3 = 2 : 3 Hence, the ratio of their speeds is 2 : 3

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ICSE MATHEMATICS - 6>Ratio and Proportion>Chapter 10 - Speed, Time and Distance>EXERCISE 10.2

B Nirmala Shastry Solutions for Exercise 2: EXERCISE 10.2

Author:B Nirmala Shastry

B Nirmala Shastry Mathematics Solutions for Exercise - B Nirmala Shastry Solutions for Exercise 2: EXERCISE 10.2

Attempt the free practice questions from Exercise 2: EXERCISE 10.2 with hints and solutions to strengthen your understanding. ICSE MATHEMATICS - 6 solutions are prepared by Experienced Embibe Experts.