A) Rs.10
B) Rs.12
C) Rs.16
D) Rs.18
Correct Answer: C
Solution :
Reasoning: 2 men and 1 boy can do job in 5 days means. 10 men and 5 boys can do a job in 1 day. Again, 1 man and 2 boys can do the same job in 6 days means 6 men and 12 boys can do the same job in 1 day. \[\therefore \]10 men and 5 boys = 6 men and 12 boys i.e. Rs.16 per week. i.e., 4 men = 7 boys Now, 7 boys get \[P=Rs.6400.\] per week \[A=8000{{\left( 1+\frac{5}{2\times 100} \right)}^{2}}=Rs.8405\] 1 boy gets Rs. \[CI=A-P=8405-8000=Rs.405.\]You need to login to perform this action.
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