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A man can complete a job in 24 days and his wife can complete the same job in 30 days. How long will they take to complete the job if they work together? |
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Answer» MAN =1/24 WIFE=1/30 man +wife = 1/24 +1/30 =54/120 =9/20 reciprocal of WORKING DAYS =20/9 =2 2/9 days |
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