Questions 1771–1772 of 1772. Imported answers require independent review unless marked reviewed.

Topic practice 1772 questionsPage 178 of 178

Question 174

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Budhan covers a distance of 19 km in 2 hours by cycling one fourth of the time and walking the rest. The next day he cycles (at the same speed as before) for half the time and walks the rest (at the same speed as before) and covers 26 km in 2 hours. The speed in km/h at which Budhan walks is
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Question 175

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The points in the graph below represent the halts of a lift for durations of 1 minute, over a period of 1 hour.
Diagram for Engineering Sciences question 175

Which of the following statements are correct?
i. The elevator never moves directly from any non-ground floor to another non-ground floor over the one hour period ii. The elevator stays on the fourth floor for the longest duration over the one hour period
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