Question

6. За день туристы прошли 22 km. 3 часа они

шли со скоростью 4 km/h, а остальное рас-
стояние
со скоростью 5 km/h. Сколько вре-
мени туристы были в дороге?

Answer 1

• 5 hours

Explanation:

The question is

The tourists walked a distance of 22 km during a day.

The first 3 hours they walked with the speed of 4 km/h and the rest of the distance with the speed of 5 km/h.

What was the total time they walked.

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Let the time the tourists walked with 5 km/h is t, then we have the following equation for the total distance

• 3*4 + t*5 = 22

Solve for t

• 12 + 5t = 22
• 5t = 22 - 12
• 5t = 10
• t = 2

The total time was

• 3 + 2 = 5 hours