Question

Толя, Миша, и Никита покупали сливы. Миша купил на 20 % меньше, чем Толя,а Никита на 10% меньше, чем Миша. На сколько процентов больше слив купил Толя, чем Миша

Answer 1

Краткая запись:
Толя - 0,2 + х 
Миша - х
Никита -  х - 0,1
(Чтобы перевести процент в число, нужно разделить на 100)
0,2 + х + х + х - 0,1 = 1
(Равно одному, т. к. всего было 100%, а 100 разделить на 100 будет 1)
3х = 0,9
х = 0,9 : 3
х = 0,3
0,3%(30%) - слив купил Миша.
0,3 + 0,2 = 0,5%(50%) - слив купил Толя.
0,5 - 0,3 = 0,2%(20%) слив больше купил Толя.
Ответ: на 20%. 

Answer 2

Problem Analysis

We are given that Tolya, Misha, and Nikita bought plums. Misha bought 20% less than Tolya, and Nikita bought 10% less than Misha. We need to determine the percentage by which Tolya bought more plums than Misha.

Solution

Let's assume that Tolya bought 100 plums.

According to the given information: - Misha bought 20% less than Tolya, so Misha bought 80 plums. - Nikita bought 10% less than Misha, so Nikita bought 90% of 80 plums, which is 72 plums.

Therefore, Tolya bought 100 plums, Misha bought 80 plums, and Nikita bought 72 plums.

To find the percentage by which Tolya bought more plums than Misha, we can use the following formula:

Percentage = ((Difference / Original) * 100)

Where: - Difference = Tolya's plums - Misha's plums - Original = Misha's plums

Substituting the values: - Difference = 100 - 80 = 20 - Original = 80

Percentage = ((20 / 80) * 100) = 25%

Therefore, Tolya bought 25% more plums than Misha.

Answer

Tolya bought 25% more plums than Misha.