A) 10
B) 15
C) 20
D) 25
Correct Answer: A
Solution :
Let initially the number of men be x. According to question, \[{{M}_{1}}{{D}_{1}}{{W}_{2}}={{M}_{2}}{{D}_{2}}{{W}_{1}}\] \[x\times 30=(x+5)\times (30-10)\] \[\Rightarrow \] \[x\times 30=20x+100\] \[\Rightarrow \] \[30x-20x=100\]\[\Rightarrow \]\[10x=100\] \[\therefore \] \[x=10\]You need to login to perform this action.
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