sir i attached image in website plaease sir solve this type of question

Dear student
Here we have to apply logic.See a monkey travels 10 m in 2 minutes (15 m up in first min and 5m down in second min).This means that in 8 mins he will cover 40m.Now in 9^thmin he will climb another 15 m and thus will climb 52 m pole and thus there is no point of coming back since he has already reached his goal.