Question

a water tank has steps inside. a monkey is sitting on topmost step(i.e., the first step). the water level is at the ninth step.
1) After drinking water, he wants to go back. For this, he jumps 4 steps up and then jumps back 2 steps down in every move. In how many jumps will he reach back to the top?

PLEASE GIVE THE ANSWER WITH PROPER STEPS AND EXPLANATION!

Answer 1

First jump = 1 + 3 = 4 steps Second jump = 4 – 2 = 2 steps

Third jump = 2 + 3 = 5 steps Fourth jump = 5 – 2 = 3 steps

Fifth jump = 3 + 3 = 6 steps Sixth jump = 6 – 2 = 4 steps

Seventh jump = 4 + 3 = 7 steps Eighth jump = 7 – 2 = 5 steps

Ninth jump = 5 + 3 = 8 steps Tenth jump = 8 – 2 = 6 steps

Eleventh jump = 6 + 3 = 9 steps

He will reach ninth steps in 11 jumps.

Answer 2

Answer

Step 1

9-4=5

Step 2

5+(2)=7

Step 3

7-4=3

Step 4

3+(2)=5

Step 5

5-4=1

Therefore there are 5 steps