Sumit, Ajoy, Parul and Nandini decided to go out for a picnic. If they travel with a speed of 40 km/hr, they reach 30 minutes later than their scheduled time. And if they go with a speed of 60 km/hr, they reach 30 minutes early. They start their journey at 8 a.m.
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Answer:
60 minutes and 100km
30+30=60
60+40=100
Step-by-step explanation:
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