Question

A Well has 15 steps inside it. The
Water Level is at the ninth step
A frog is sitting on the top most
step. The frog jumps 3 Steps down
and 2 Steps up
in how
how many
to
many, jumps will it reach the water level ​

Answer 1

Step-by-step explanation:

(a) Monkey Jumps 3 steps down and 2 steps up so, in total he jumped 1 step down.Therefore , Now he is at second step and water level is at the ninth step.

Now, he will reach water level in 9−2=7 jumps.

(b) He jumps 4 steps up and 2 steps down ,so totally he climbs 2 steps up in 6 Jumps,Similarly we can divide 9 steps as follows

⇒9=2+2+2+3

After reaching the third Step, As he jumps up 3 more Steps He will reach the top step and till then there will be no more steps to climb.(Means after 3 more Jumps he will reach the top step)

Now, the number of jumps he made to reach the top =2×6+2×6+2×6+3=12+12+12+3=39

Answer 2

Answer:

Since our aim is to know how many jumps will it return to the topmost step, we need to consider some steps to reach the final answer.

A well has 15 steps inside it . The water level is at ninth step. A frog is sitting on the topmost step that is the first step.The frog jumps 3 step down and then jumps 2 step up . In how many jumps will it reach the water level ? after reaching the water level the frog jumps 4 steps up and then 2 steps down in every move.In how many jumps will it return to the topmost step ?​

1) the frog reaches the water level, the 9th step after 40 jumps.

2) The frog returns to the top after 24 jumps

Hope this helps..!