A) 45 seconds
B) 50 seconds
C) 55 seconds
D) 60 seconds
Correct Answer: C
Solution :
Time taken to sew 8 buttons = 7 minutes 20 seconds \[=(\text{7}\times \text{6}0+\text{2}0)\] seconds = 440 seconds \[\therefore \] Time taken to sew 1 button \[=\frac{440}{8}\text{ second}=\text{55 second}\]
You need to login to perform this action.
You will be redirected in
3 sec
