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प्रश्न
A car travels 195 km in 3 hours.
(i) How long will it take to travel 520 km?
(ii) How far will it travel in 7 hours at the same speed?
योग
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उत्तर
(i) Time taken by the car to travel 195 km = 3 hours
Time taken by it to travel 1 km = `3/195` hours
Time taken by it to travel 520 km = 520 × `3/195 = 1560/195`= 8 hours
(ii) Distance covered by the car in 3 hours = 195 km
Distance covered by it in 1 hour = `195/3` = 65 km
Distance covered by it in 7 hours = 7 × 65 = 455 km
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