Choose the correct alternative for the Assertion [As] and Reason [R] given below: Assertion [As]: A vehicle travels the first 13 of a journey at 10 km/h, the second 13 at 20 km/h, and the final 13 at 60 km/h. The average speed for the whole journey is 18 km/h. Reason [R]: When the journey is split into unequal time intervals, the average speed is always the arithmetic mean of the speeds weighted by the distance covered.

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Mathematics · Speed, Distance and Time

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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[As] is true, but [R] is false.

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Answer 1

[As] is false, but [R] is true.

Answer 2

[As] is true, but [R] is false.

Answer 3

Both [As] and [R] are true, but [R] is not the correct explanation of [As].

Answer 4

Both [As] and [R] are true, and [R] is the correct explanation of [As].

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