Question

Цена яблок - 30 р.,а цена груш - 40 р. за 1 кг. а)на сколько процентов груши дороже яблок? б)На сколько процентов яблоки дешевле груш

Answer 1

30 - 100 
40-x 
x= 4000/30=33% груши дороже яблок на 33, 3 % 

40-100 
30-х 
х = 30*100/40=75, те дешевле чем груши на 25%

Answer 2

Calculating Price Differences between Apples and Pears

To calculate the price differences between apples and pears, we can use the given prices: - Price of apples = 30 р. per kg - Price of pears = 40 р. per kg

a) Percentage Difference: Pears More Expensive than Apples

To find out by how much percent pears are more expensive than apples, we can use the following formula: \[ \text{Percentage Difference} = \frac{\text{Difference in Prices}}{\text{Price of Apples}} \times 100\% \]

The difference in prices is 40 р. - 30 р. = 10 р.

So, the percentage difference is: \[ \frac{10}{30} \times 100\% = \frac{1}{3} \times 100\% = 33.33\% \]

Pears are approximately 33.33% more expensive than apples.

b) Percentage Difference: Apples Cheaper than Pears

To find out by how much percent apples are cheaper than pears, we can use the following formula: \[ \text{Percentage Difference} = \frac{\text{Difference in Prices}}{\text{Price of Pears}} \times 100\% \]

The difference in prices is 40 р. - 30 р. = 10 р.

So, the percentage difference is: \[ \frac{10}{40} \times 100\% = \frac{1}{4} \times 100\% = 25\% \]

Apples are approximately 25% cheaper than pears