17. Neha completed a task in 2 3/5 hours while her friend completed the same task in 1 4/7 hours. Who completed the task first?
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17. Neha completed a task in 2 3/5 hours while her friend completed the same task in 1 4/7 hours. Who completed the task first?
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Answer:
LCM of 5,7=35
Neha take = 23/5 hrs
Her Friend take = 14/7 hrs
Neha = 23/5 × 7/7 = 161/35
Her Friend = 14/7 × 5/5 = 70/35
So,Neha's Friend completed first.