A monkey climbs a pole 34 m long. In first minute he climbs 6 m and in second minute he slips down
2 m. In third minute he again climbs 6 m and in fourth minute he slips down 2 m. If he continue to
do like this then find the time taken by him to reach the top.
(a) 15 min (b) 17 min
(c) 18 min (d) none
Answers
Step-by-step explanation:
your answer is 18 minutes as he climbs 4m in 2 mins so he will climb 34m in 18 min
Given,
The total length of a pole = 34m
In the first minute. monkey climbs 6 m
In the second minute. monkey slips down 2m
To Find,
The time taken by him to reach the top of a pole =?
Solution,
In the first 1 minute, the monkey climbs = 6m
In next 1 minute, monkey climbs = - 2 m {as he slips down}
Total distance covered in 2 minutes = 6 - 2
Total distance covered in 2 minutes = 4m
Total distance covered in 1 minutes = 4 / 2
Total distance covered in 2 minutes = 2 m
Therefore, the monkey climbs 2 m in 1 minute. To reach the top of the pole he has to climb 34 m
Time taken to climb 2 m = 1 minute
Time taken to climb 1 m = 1 / 2 minute
Time taken to climb 34 m = 34 * (1/2)
Time taken to climb 34 m = 34 / 2
Time taken to climb 34 m = 17 minutes
Hence, the time taken by the monkey to reach the top of the pole is 17 minutes. Option(b) is the correct answer.