Latest Huawei Aptitude Question SOLUTION: A monkey start climbing up a tree 20ft tall.Each hour it hops 3 ft and slips back 2ft.How much time would it take the monkey to reach the top.

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A monkey start climbing up a tree 20ft tall.Each hour it hops 3 ft and slips back 2ft.How much time would it take the monkey to reach the top.

Asked In Huawei juhe rawat (9 years ago)

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saurabh sahu  (9 years ago)

18......!
it will climb 17 ft in 17 hour.in 18th hour it will climb 3 feet ...so in 18 hour it will complete.

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nikhil kumar  (9 years ago)

if monkey hops 3ft and slips back 2ft in a hour, it means the monkey hops (3ft-2ft)= 1ft/hr.
similarly in 17hrs it wil be 17ft.
Bt since the height of the tree is 20ft, so if the monkey hops up the tree in the next hr i.e 18th hr then it reaches at the top of the tree.

hence it takes 18 hrs for monkey to reach at the top.

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ARUP MONDAL  (9 years ago)

20hr.For 1hr,monkey hops 1ft.so to reach 20ft,it ll take 20hrs

Is this solution Helpfull? Yes (1) | No (15)  

md shabbir ahmad  (9 years ago)

monkey will take 18 hours to climb

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tapal akram  (9 years ago)

17
i t reaches at 20 feet on 17 hour

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Lakshmi Lavanya Tamrapalli  (9 years ago)

It takes 18 hours

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sandeep  (9 years ago)

18 hours...
start from 3 ft -2 ft=1 ft in 1 hour
1+3=4ft - 2ft=2ft in 2hours
2+3=5ft-2 ft=3 ft in 3 hrs
go on continuing till 20 ft
17+3=20ft -2 ft=18 ft in 18 hrs.. he reaches 20 ft in 18th hour itself
Read more at http://www.m4maths.com/3770-A-monkey-starts-climbing-up-a-tree-20ft-tall-Each-hour-it-hops-3ft-and-slips-back-2ft-How-much.html#fVqvAFeMPsie0zrX.99

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mukesh kumar  (9 years ago)

2 hour work=(3-2)=1/2
work=1
time =2 hour
suppose he take x+3=20
means x=17 work done
17/(1/2)+last day to claim to tree
34+1(hour)
total =35 hour (Ans)

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HONEY KUMARI  (7 years ago)

answer will be 18 because monkey climb 17 ft in 17 hour but in 18th hour ,money climbs 3 feet more and that time money will be at top after that may be monkey slips and come back to the 2 feet down but it minimum time monkey take to reach is 18 hr.

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