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9 Men And 12 Boys Finish A Job In 12 Days, 12 Men And 12 Boys Finish It In 10 Days. 10 Men And 10 Boys Shall Finish It In How Many Days? |
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Answer» 9M + 12B ----- 12 days 12M + 12B ------- 10 days 10M + 10B -------? 108M + 144B = 120M +120B 18B + 12B = 30B ---- 12 days 20B + 10B = 30B -----? => 12 days. 9M + 12B ----- 12 days 12M + 12B ------- 10 days 10M + 10B -------? 108M + 144B = 120M +120B 24B = 12M => 1M = 2B 18B + 12B = 30B ---- 12 days 20B + 10B = 30B -----? => 12 days. |
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