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থিম নির্বাচন

আপনার পছন্দের থিম বেছে নিন।

Six men can complete a work in 5 days if they work for 8 hours per day. How many days 4 men will take to do the some work only 5 hours per day?

A. 12
B. 16
C. 24
D. 32
Explanation: