If 12 girls earn 840rupees in 7 days ,how much will15 girls earn in 6 days
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12 girls in 7 days earn Rs840
12 girls in 1 day earn Rs840/7=Rs120
1 girl in 1 day earn Rs120/12=Rs10
15 girls in 1 day earn Rs10×15=Rs150
Hence,15 girls in 6 days earn Rs150×6=Rs900
12 girls in 1 day earn Rs840/7=Rs120
1 girl in 1 day earn Rs120/12=Rs10
15 girls in 1 day earn Rs10×15=Rs150
Hence,15 girls in 6 days earn Rs150×6=Rs900
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