A person walks at 10 kmph for 3 hrs and at 8 kmph for 6 hrs- What is the average speed-A- 10 kmphB- 91 - 3 kmphC- 82 - 3 kmphD- 95 - 3 kmphE- 102 - 3 kmph

The correct option is C 8 (2/3) kmph Avg. speed = Total distance / Total time = 10×3 + 8×6/9 = 82/3 kmph ...

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Question

A person walks at 10 kmph for 3 hrs and at 8kmph for 6 hrs. What is the average speed?

9 (1/3) kmph

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8 (2/3) kmph

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9 (5/3) kmph

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10 (2/3) kmph

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10 kmph

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Solution

The correct option is B
8 (2/3) kmph

Avg. speed = Total distance / Total time

$= \frac{10 \times 3 + 8 \times 6}{9}$

$= 8 \frac{2}{3}$ kmph

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A person walks at 10 kmph for 3 hrs and at 8kmph for 6 hrs. What is the average speed?

The correct option is B 8 (2/3) kmph Avg. speed = Total distance / Total time =10×3+8×69 =823 kmph

The correct option is B
8 (2/3) kmph

Avg. speed = Total distance / Total time

$= \frac{10 \times 3 + 8 \times 6}{9}$

$= 8 \frac{2}{3}$ kmph