A) 3
B) 4
C) 7
D) 6
Correct Answer: D
Solution :
According to question \[\frac{36+n}{50+n}=\frac{3}{4}\] \[36\times 4+4n=50\times 3+3n\] \[4n-3n=150-144\] \[n=6\]You need to login to perform this action.
You will be redirected in
3 sec