Answered

A man is climbing up a mountain that is inclined. He has to travel 100 km to reach the top of the mountain. Every day He climbs up 2 km forward in the daytime. Exhausted, he then takes a rest there at night time. At night, while he is asleep, he slips down 1 km backward because the mountain is inclined. Then how many days does it take him to reach the mountain top?

Sagot :

Lattelleid

Answer: ☕

It takes 99 days for him to reach the mountain top.

Lattelle's Solution:

He climbs up 2 km everyday.

  • 2 KM ( Addition / + )

He slips 1 km when sleeping.

  • 1 KM ( Subtraction / - )

He has to travel 100 km to reach the mountain top.

  • 100 KM ( ? )

To find out, we must multiply.

2 km x 100 km = 200 km

1 km x 100 km = 100 km

Now, we use subtraction against 200km. We will use 100 km on 200 km.

It still results as a 100km. If we could pretend that the kilometer is actually days, we could find the actual answer. We will use 1 day against 2 days.

  • 1 day - 2 days = 1 day.

It becomes 1 day. Now, we use 1 day against 100 days.

  • 1 days - 100 days = 99 days

We have reached our conclusion. The answer is 99 days.

- Lattelle☕

Answer:

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