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A bus covers a distance from Town R to Town S at a speed of 29 kmph and covers the distance from Town S to Town R at a speed of 26 kmph. Find the approximate average speed of the bus?1. 29 kmph2. 28.5 kmph3. 27 kmph4. 26 kmph |
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Answer» Correct Answer - Option 3 : 27 kmph Given: Bus’s speed from Town R to Town S = 29 kmph Bus’s speed from Town S to Town R = 26 kmph Formula Used: Average Speed = 2 (A × B) / (A + B) Calculations: As two equal distance are covered at two different speed Average Speed = 2 (A × B) / (A + B) ⇒ Average Speed = 2 × 29 × 26 / (29 + 26) ⇒ Average Speed = 1508 / 55 ⇒ Average Speed = 27.41 ≈ 27. The approximate average speed of the bus is 27 kmph. |
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