Question

Хозяйка рассчитывала за 1 5/6 часа приготовить обед и за 1 3/5 часа закончить стирку белья. Однако на всю работу у нее ушло на 1 1/4 часа больше, чем она рассчитывала. Сколько времени ушло у хозяйки на всю эту работу?

Answer 1

1). 1 5/6+1 3/5+1 1/4=4 41/60 часа ушло на всю работу

Answer 2

Calculation of Time Spent by the Hostess

To calculate the total time spent by the hostess on all the tasks, we need to add up the time she spent on cooking lunch and finishing the laundry.

The hostess initially planned to spend 1 5/6 hours on cooking lunch and 1 3/5 hours on finishing the laundry. However, she ended up spending 1 1/4 hours more than she had planned.

To find the total time spent, we can add the planned time for each task and then add the additional time spent.

1. Cooking lunch: - Planned time: 1 5/6 hours 2. Finishing laundry: - Planned time: 1 3/5 hours

Adding the planned times: 1 5/6 hours + 1 3/5 hours = 11/6 hours + 8/5 hours

To add these fractions, we need to find a common denominator. The least common multiple of 6 and 5 is 30.

Converting the fractions to have a denominator of 30: 1 5/6 hours = 10/6 hours = 50/30 hours 1 3/5 hours = 8/5 hours = 48/30 hours

Adding the converted fractions: 50/30 hours + 48/30 hours = 98/30 hours

Now, we add the additional time spent: 98/30 hours + 1 1/4 hours = 98/30 hours + 5/4 hours

Converting 1 1/4 hours to have a denominator of 30: 1 1/4 hours = 5/4 hours = 37.5/30 hours

Adding the converted fractions: 98/30 hours + 37.5/30 hours = 135.5/30 hours

Simplifying the fraction: 135.5/30 hours = 4 15.5/30 hours

Therefore, the hostess spent a total of 4 hours and 15.5 minutes on all the tasks.

Answer:

The hostess spent a total of 4 hours and 15.5 minutes on all the tasks.