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In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. In this race A beats B by:1. 20 m2. 25 m3. 22.5 m4. 9 m |
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Answer» Correct Answer - Option 1 : 20 m Given: In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. Formula used: Speed = distance/time Distance = Speed × time Calculation: In 100 m race, A covers the distance in 36 seconds and B in 45 seconds. According to the question, A beats B by = (45 – 36) second ⇒ 9 second Speed of B = 100/45 Distance covered by B in 9 second ⇒ (100/45)× 9 ⇒ 20 m ∴ A beats by B by 20 m. |
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