Question

В магазин привезли 156 кг рыбы; 1/2 всей рыбы составил судак, 1/3 карп, а остальные - окунь. Сколько килограммов окуня привезли в магазин?

Answer 1

156*1/2=78 кг (судак)
156*1/3=52 кг (карп)
156-(78+52)=156-130=26 кг(окунь)
Ответ: 26 кг

Answer 2

Calculation of the Weight of Perch

To calculate the weight of perch brought to the store, we need to determine the weight of the perch as a fraction of the total weight of the fish.

According to the information provided, 1/2 of the total fish weight is pike-perch (sudak), 1/3 is carp, and the remaining fish is perch.

Let's calculate the weight of the perch:

1. Calculate the weight of the pike-perch (sudak): - 1/2 of the total weight of the fish is pike-perch. - Therefore, the weight of the pike-perch is (1/2) * 156 kg = 78 kg.

2. Calculate the weight of the carp: - 1/3 of the total weight of the fish is carp. - Therefore, the weight of the carp is (1/3) * 156 kg = 52 kg.

3. Calculate the weight of the perch: - The remaining fish after accounting for pike-perch and carp is perch. - Therefore, the weight of the perch is the difference between the total weight of the fish and the combined weight of pike-perch and carp: - Weight of perch = Total weight of fish - (Weight of pike-perch + Weight of carp) - Weight of perch = 156 kg - (78 kg + 52 kg) - Weight of perch = 26 kg.

Therefore, 26 kilograms of perch were brought to the store.