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Question

If a train travelled 9 km/hr slower, it would take one hour more to travel 410 km. The equation representing this situation is :


A

510x9410x=x1

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B

410x9410x=1

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C

410x9410x=1

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D

410x410x9=1

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Solution

The correct option is B

410x9410x=1


Let the speed of the train be x km/hr.
Distance travelled = 410 km

Time taken to travel 410 km = 410x hours

When the speed is decreased by 9 km/h, the new speed is (x-9)

Time taken to travel 410 km with the new speed is 410x9 hours

According to the question,
410x9410x=1


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