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यदि 1 पुरुष या 2 स्त्रियाँ या 3 लड़के किसी काम को 88 दिनों में कर सकते है , तो एक पुरुष एक स्त्री तथा एक लड़का मिलकर काम को कितने दिनों में ख़त्म करेंगे ?A. 36 daysB. 42 daysC. 48 daysD. 54 days |
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Answer» Correct Answer - c (c ) if no of days remain same like in this question for men , women and boys done by one man in 88 days will be done by 2 women in 88 days so this shows efficiency ) 1 man =2 women `(1)/(2)` man = 1 women Simliarly 1 boy = `(10)/(3)` man 1 man +1 woman + 1 boy will do work in , man `+(1)/(2)` man `+(1)/(3)` man `(6+3+2)/(6)=(11)-(6)` man 1 man does in 88 days `(11)/(6)` man does in `=(88xx6)/(11)` =48 days |
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