Question

Миша перекапывал грядки 3 часа.На первую грядку он затратил одну пятую часа,на вторую 3 четвёртых часа,на третью 1 вторая часа.Остальное время он отдыхал.Сколько времени Миша отдыхал?помогите мне пожайлуста

Answer 1

1/5 + 3/4 + 1/2 = (общ.знаменатель 20, доп.множители 4, 5, 10) = (4+15+10)/20=29/20 ч. он работал
3-29/20=60/20-29/20=31/20=1 11/20. - отдыхал

Answer 2

Calculation of Rest Time

To calculate the amount of time Misha spent resting, we need to subtract the time he spent working on the garden beds from the total time he spent on the task.

Misha spent 3 hours in total working on the garden beds. Let's break down the time he spent on each bed:

- On the first bed, he spent one-fifth of an hour. - On the second bed, he spent three-fourths of an hour. - On the third bed, he spent one-half of an hour.

To find the total time Misha spent working, we can add up the time spent on each bed:

Total time spent working = (one-fifth) + (three-fourths) + (one-half) = 1/5 + 3/4 + 1/2

To simplify the calculation, we can convert the fractions to a common denominator:

Total time spent working = (4/20) + (15/20) + (10/20) = 29/20

Now, we can subtract the total time spent working from the total time Misha spent on the task to find the rest time:

Rest time = Total time - Total time spent working = 3 - (29/20)

To calculate the rest time, we need to convert the total time to a common denominator:

Rest time = (60/20) - (29/20) = 31/20

Therefore, Misha spent 31/20 hours resting.

Please note that the given information does not specify the unit of time used (hours, minutes, etc.). Assuming the time is given in hours, the rest time can be calculated as mentioned above.