A TV set is now selling for 900 yuan, 10 / 3 cheaper than the original price. How much was the original price of this TV set? Xiaoqiang read 35 pages of an extra-curricular book, which is exactly five seventh of the remaining pages. How many pages are there in this extra-curricular book? When a batch of parts are processed, 60 parts are processed per hour, and two fifths of the parts are left unprocessed after 5 hours, how many parts need to be processed? The kindergarten bought some fruit, took out a quarter of the total number to the big class, and took out two fifths of the total number to the middle class, leaving 7 kg. How many kg of fruit did the kindergarten buy? (please use equation to solve)

A TV set is now selling for 900 yuan, 10 / 3 cheaper than the original price. How much was the original price of this TV set? Xiaoqiang read 35 pages of an extra-curricular book, which is exactly five seventh of the remaining pages. How many pages are there in this extra-curricular book? When a batch of parts are processed, 60 parts are processed per hour, and two fifths of the parts are left unprocessed after 5 hours, how many parts need to be processed? The kindergarten bought some fruit, took out a quarter of the total number to the big class, and took out two fifths of the total number to the middle class, leaving 7 kg. How many kg of fruit did the kindergarten buy? (please use equation to solve)

Xiaoqiang read 35 pages of an extra-curricular book, which is exactly five seventh of the remaining pages. How many pages are there in this extra-curricular book?
Suppose this book has x pages
5/7（X-35）=35
The solution is: x = 84
A: This extra-curricular book has a total of 84 pages
When a batch of parts are processed, 60 parts are processed per hour, and two fifths of the parts are left unprocessed after 5 hours, how many parts need to be processed?
Suppose x parts need to be processed
X-60*5=2/5X
The solution is: x = 500
A: there are 500 parts to be processed
The kindergarten bought some fruit, took out a quarter of the total number to the big class, and took out two fifths of the total number to the middle class, leaving 7 kg. How many kg of fruit did the kindergarten buy?
The kindergarten bought a total of x kg of fruit
1/4 X+2/5 X+7=X
The solution is: x = 20
A: the kindergarten bought 20 kilograms of fruit
For reference only,

If the price of a certain brand of mobile phone is reduced by 10%, and the price of each mobile phone is m yuan, then the original price of the mobile phone is____ How to solve the equation process

Set the original price of each mobile phone as X Yuan
(1-10%)X=m
X=10/9m

There is a TV. It's 1700 yuan after 15% discount. How much is the original price?

1700/0.85=2000

A washing machine is 1700 yuan after 15% discount. How much is the original price? How much is the current price cheaper than the original price?

The original price of the washing machine is: 1700 △ 85% = 2000 (yuan), and the current price is cheaper than the original price: 2000-1800 = 300 (yuan). A: the original price is 2000 yuan, and the current price is 300 yuan cheaper than the original price