A monkey is trying to climb an oily pole of 45 m. In one jump he climbs 3 m but due to lack of friction he slips by 1m. In how many steps he can reach at the top of tower?
Correct Answer : b ) 22Explanation :
According to the question
A monkey climbs 3 m and slips 1m,
So, in 1 jump monkey can climb effectively = 2m
Length of the tower = 45m
Subtract the last jump of the monkey from the length of tower, = 45 – 3 = 42
Total jump needed by monkey to reach 42 m =\(42 \over 2\)=21 jumps
In last jump he reaches at the top, so total jump to climb = 21 + 1 = 22
Hence, (b) is the correct answer.
Such type of question is asked in various government exams like SSC CGL, SSC MTS, SSC CPO, SSC CHSL, RRB JE, RRB NTPC, RRB GROUP D, RRB OFFICER SCALE-I, IBPS PO, IBPS SO, RRB Office Assistant, IBPS Clerk, RBI Assistant, IBPS RRB OFFICER SCALE 2&3, UPSC CDS etc.