A) 10 minutes
B) 11 minutes
C) 12 minutes
D) 13 minutes
Correct Answer: B
Solution :
Height of pole =21 metre Height covered in 2 minutes \[=~6m-3m=3m\] \[\therefore \] 15 metres high covered in. \[2\times 5=10\]minutes Now, in the 11th minute he is on the top of pole \[=10\min +1\min \] \[=\,\,\mathbf{11}\,\,\mathbf{min}\]You need to login to perform this action.
You will be redirected in
3 sec