A) 200
B) 240
C) 280
D) 320
Correct Answer: A
Solution :
By given condition, \[n\times 30=n\times 10+(n+50)\times 16\] \[\Rightarrow \] \[20n=16n+800\] \[\Rightarrow \] \[n=\frac{800}{4}=200\]You need to login to perform this action.
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