By working 8 hours a day 6 men can Rs. 8400 in a week. How much money will 9 men earn in a week by working 6 hours a day?

Answer : Option C

Explanation :

6 men by working 8 hrs per day earn Rs 8400 1 man can earn in a week by working 8 hrs a day = $8400 \over 6$ $\times$ 8 9men can by working 6hrs a day earn in a week = 8400 x $9\over 6$ x $6 \over 8$ = Rs. 9450

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