Question

До перерыв шахматисту играли 4/5 всего времени партии.Сколько времени продолжалась партия, если до перерыва шахматисты играли 2ч.

Answer 1

2 часа=120 мин,значит

120:4*5=150 мин=2,5 час  или 2 часа 30 мин длилась вся партия

Answer 2

2ч-4/5 всей партии
1/5 партии=30мин
Вся партия шла 2.5 часа)))

Answer 3

Calculating the Duration of the Chess Game Before the Break

To calculate the duration of the chess game before the break, we can use the information provided. The chess players played for 4/5 of the total time before the break, and the total time before the break was 2 hours.

Step 1: Calculate the total time for the game before the break. Step 2: Use the total time to calculate the duration of the game.

Step 1: Calculate the Total Time for the Game Before the Break

To calculate the total time for the game before the break, we can use the fact that the players played for 4/5 of the total time before the break.

The total time before the break can be calculated using the formula: Total time = Time played / (4/5)

Given that the players played for 2 hours before the break, we can calculate the total time: Total time = 2 / (4/5)

Step 2: Calculate the Duration of the Game

Now that we have the total time, we can calculate the duration of the game.

Duration of the game = Total time / (4/5)

Let's calculate the duration of the game using the information provided.

Calculations: Total time = 2 / (4/5) = 2 / 0.8 = 2.5 hours

Duration of the game = 2.5 / (4/5) = 2.5 / 0.8 = 3.125 hours

Answer:

The duration of the chess game before the break was approximately 3.125 hours.