15 men take 21 days working 8 hour each day to do a piece of work. How many days of 6 hour each would 21 women take, if 3 women can do as much work as 2 men can do. 15 आदमी 8 घंटे प्रतिदिन कार्य करके किसी कार्य को 21 दिनों में पूरा करते हैं | 21 महिलायें 6 घंटे प्रतिदिन कार्य करके कितने दिन लेंगीं, यदि 3 महिलायें 2 आदमियों के बराबर कार्य करती हैं ?
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