Question

до обеда осталось 3/4 часа, причем 2/5 этого времени можно поиграть в прятки, а 1/5 в догонялки. Сколько времени можно поиграть?

Answer 1

3\4 часа это 15 мин.В прятки и догонялки можно потграть 3\5 т.е 9 мин.

Answer 2

Calculating Playtime Before Lunch

To calculate the time available for playing before lunch, we can follow these steps:

1. Total Time Before Lunch: - Given time before lunch is 3/4 hour.

2. Time for Hide and Seek: - 2/5 of the total time can be spent playing hide and seek.

3. Time for Tag: - 1/5 of the total time can be spent playing tag.

Calculation

1. Total Time Before Lunch: - 3/4 hour

2. Time for Hide and Seek: - (2/5) * (3/4) = (6/20) * (3/4) = 18/80 = 9/40 hour

3. Time for Tag: - (1/5) * (3/4) = (3/20) * (3/4) = 9/80 hour

Conclusion

Before lunch, it is possible to play hide and seek for 9/40 hour and play tag for 9/80 hour.