A monkey ascends a greased pole 20 metres high.
A monkey ascends a greased pole 20 metres high. He ascends 2 metres in first minute and slips down 1 metre in the alternate minute. In which minute, he reaches the top ?
Answer/Solution
37th
Steps/Work
In 2 minutes, he ascends = 1 metre
∴ 18 metres, he ascends in 36 minutes.
∴ He reaches the top in 37th minute.
Answer E
∴ 18 metres, he ascends in 36 minutes.
∴ He reaches the top in 37th minute.
Answer E