20 boys can earn 3200 in 30 days in how many days 30 boys and and 2400
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Answer:
15 days
Step-by-step explanation:
1 boy earns in 30 days=3200/20=160
1boy earns in one day=160/30
30 boys earn in one day=160/30 x 30=160
No of day required by 30 boys to earn 2400=2400/160=15 days
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