An escalator is moving up at a speed of 1 step per 2 seconds. A person is also moving up on that escalator. He started to walk at the rate of 2 steps per second. He reached the top of the escalator in 10 seconds. How many steps are there in that escalator?

24 steps

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25 steps

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26 steps

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28 steps

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Solution

The correct option is B 25 steps

Speed of the escalator = 0.5 steps per second

Speed of the person = 2 steps per second

Effective rate of the person = 2.5 steps per second

Number of steps = 2.5 × 10 = 25

Hence, option (B) is the correct answer.

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An escalator is moving up at a speed of 1 step per 2 seconds. A person is also moving up on that escalator. He started to walk at the rate of 2 steps per second. He reached the top of the escalator in 10 seconds. How many steps are there in that escalator?

The correct option is B 25 steps Speed of the escalator = 0.5 steps per second Speed of the person = 2 steps per second Effective rate of the person = 2.5 steps per second Number of steps = 2.5 × 10 = 25 Hence, option (B) is the correct answer.

The correct option is B 25 steps

Speed of the escalator = 0.5 steps per second

Speed of the person = 2 steps per second

Effective rate of the person = 2.5 steps per second

Number of steps = 2.5 × 10 = 25

Hence, option (B) is the correct answer.