A) 60 min
B) 85 min
C) 90 min
D) 105 min
Correct Answer: D
Solution :
Net filling in 1 min\[=\frac{1}{5}+\frac{1}{7}-\frac{1}{3}\] \[=\frac{21+15-35}{105}=\frac{1}{105}\] Hence, the tub will be full in 105 min.You need to login to perform this action.
You will be redirected in
3 sec