My mother goes to the farmer's market to buy fruit. With the money, she can buy 8 kg apples, 10 kg pears, or 12 kg oranges She decided to buy a little of each kind of fruit and buy the same amount. How many kilos does mother buy for each of the three kinds of fruit? She decided to buy a little of each kind of fruit, and the money was the same. How many kilos did mom buy for each of the three kinds of fruit?

My mother goes to the farmer's market to buy fruit. With the money, she can buy 8 kg apples, 10 kg pears, or 12 kg oranges She decided to buy a little of each kind of fruit and buy the same amount. How many kilos does mother buy for each of the three kinds of fruit? She decided to buy a little of each kind of fruit, and the money was the same. How many kilos did mom buy for each of the three kinds of fruit?

Let Apple x per kilogram, pear y and orange Z
8X=10Y
8X=12Z
Kg of each type = 8x / (x + y + Z)
=8X/(X+0.8X+2/3X)
=120 / 37 kg
Wrong, upstairs is right, I think I bought as much

My mother bought some apples, pears and oranges. There were 60 apples and pears, 75 pears and oranges, and 65 apples and oranges. How many apples, pears and oranges did my mother buy back?

The number of apples + pears = 60,
The number of pears + oranges = 75,
The number of apples + the number of oranges = 65,
② - ① the number of pears + the number of oranges - the number of apples - the number of pears = 75-60,
So the number of oranges - the number of apples = 15,
④ The number of oranges - the number of apples + the number of apples + the number of oranges = 15 + 65,
The number of oranges × 2 = 80,
The number of oranges = 40;
Thus, the number of pears was 75-40 = 35;
The number of apples was 60-35 = 25;
A: my mother bought 25 apples, 35 pears and 40 oranges

Mother bought 5 kg oranges and 7 kg apples, which cost 64.5 yuan in total. It is known that 1.5 yuan is more expensive per kilogram of apples than oranges. How much is the price per kilogram of apples and oranges?

5 × 5. 5 × 5. 5 yuan per kilogram

Mother bought 5 kg oranges and 7 kg apples, which cost 64.5 yuan in total. It is known that 1.5 yuan is more expensive per kilogram of apples than oranges. How much is the price per kilogram of apples and oranges?

5 × 5. 5 × 5. 5 yuan per kilogram

Mother bought 5 kg oranges and 7 kg apples, which cost 64.5 yuan in total. It is known that 1.5 yuan is more expensive per kilogram of apples than oranges. How much is the price per kilogram of apples and oranges?

Suppose x yuan per kilogram of orange, then x + 1.5 yuan per kilogram of apple
5X+（X+1.5）×7=64.5
    5X+7X+10.5=64.5
      12X+10.5=64.5
           12X=64.5-10.5
             X=54÷12
             X=4.5
X+1.5=4.5+1.2=6
A: 6 yuan per kilogram of apple and 4.5 yuan per kilogram of orange

My mother bought 5 kg oranges and 7 kg apples, which cost 67 yuan in total. It is known that 1 yuan is more expensive per kilogram of apples than oranges. How much are each kilogram of apples and oranges?

Orange price = (67-7) / (5 + 7) = 60 ÷ 12 = 5 yuan / kg
Apple price = 5 + 1 = 6 yuan / kg

My mother bought 8 kg apples, and the pears she bought were 1 / 4 less than the apples

6 kg
.

Mother bought 8kg apple, bought a quarter more pear than apple, how many kilograms of pear mother bought how to do

8x(1+1/4)=8x5/4=10kg.

Mother bought 3 / 7 more apples than pears, 3 / 4 kg less pears than apples, how many kg pears and how many kg apples

Pear: 3 / 4 / 3 / 7 = 7 / 4 (kg)
Apple: 7 / 4 (1 + 3 / 7)
=7 / 4 × 11 / 7
=5 / 2 (kg)
This is what our teacher said,

My mother bought three seventh more apples than pears, and three thousand grams less pears than apples. How many kilograms does a pear have? How many kilograms does an apple have?

Apple = (1 + 3 / 7) pear = 10 / 7 pear
Pear + 3 / 4 = apple
10 / 7 pear = pear + 3 / 4
3 / 7 pear = 3 / 4
Pear = 1.75kg
Apple = pear + 3 / 4 = 1.75 + 3 / 4 = 2.5kg