Question

За неделю бригада рабочих отремонтировала 138м. дороги,что составляет 115% плана. Сколько метров дороги планировали отремонтировать за неделю?

Answer 1

138 м -- 115%
х м     -- 100% 

138/х=115/100
х*115=138*100
115х=13800
х=13800/115
х=120(м) -- по плану.
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Ответ: по плану бригада должна была отремонтировать 120 м дороги.

Answer 2

Calculation of Planned Road Repair Length

To calculate the planned length of road repair for the week, we can use the given information that the work crew repaired 138 meters of road, which is 115% of the plan.

Let's assume the planned length of road repair for the week is represented by the variable x.

According to the information provided, we can set up the following equation:

138 = 115% of x

To solve for x, we need to divide both sides of the equation by 115% (or 1.15):

x = 138 / 1.15

Now, let's calculate the value of x:

x = 120 meters

Therefore, the planned length of road repair for the week was 120 meters.