Ученик прочитал 64 страниц,что составляет 32 % количества всех страниц в книге. Сколько страниц в книге?

Ученик прочитал 64 страниц,что составляет 32 % количества всех страниц в книге. Сколько страниц в книге?
- Предмет:
  Математика
- Автор:
  josefagkvj
- 5 лет назад

Ответы 1

> По действиям <Если 62 страницы это 32% всей книги, то 1%:64/32 = 2 (страницы).Тогда вся книга, т.е. 100% содержит:2*100 = 200 (страниц).> Способ пропорции <64 страницы — 32 %,х страниц — 100 %. $x = \frac{64*100}{32} = 2*100 = 200$ (страниц).Ответ: 200 страниц.
- Автор:
  apollokbze
- 5 лет назад
- 0
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I. Read the text below. Six sentences have been removed from it. Choose from the sentences A-F the one which fits each gap.
The sun was shining brightly in the clear, blue sky. (1) Ted Brown was sitting in his office, daydreaming. “I wish I were on a sandy beach in an exotic place”, he thought to himself, as he looked out of his office window at the busy streets below.
Just then, the telephone rang loudly. Ted jumped in surprise. When he picked it up, a voice said, “Come to the Grand Hotel at six o’clock. I have something for you.” “Who’s there?” Ted asked, but there was no answer. Puzzled, he looked at his watch. (2) He knew he’d have to hurry if he was to get there in time, so he quickly left the office. The traffic outside was terrible, so Ted decided to make the journey to the hotel on the underground.
(3) It took him almost an hour to get to the hotel. At exactly six o’clock, Ted was entering the impressive building. Ted walked towards the reception desk and asked if anyone had left anything for him. (4) Ted opened it and took out the card which was inside. It said “Come to room 147 on the tenth floor and knock on the door three times.” By now, Ted was very anxious to find out what was going on. When he found the room 147, he knocked on the door three times and waited. (5) The room inside was dark.
As Ted stepped inside, all the lights came on. “Surprise!”yelled Ted/s friends and family. Ted couldn’t believe his eyes. “Happy birthday, Ted” said his Mum. (6) His boss gave him another envelope which contained a ticket for a week’s Caribbean cruise. Ted was amazed!”Thank you, everyone,” he said. “This is the best birthday present ever!”

A “I thought everyone had forgotten,” replied Ted.
B It was very hot in the city centre.
C The station was crowded with people and so was the train.
D There was no answer, so Ted decided to open the door.
E It was already five o’clock and the hotel was on the other side of the city.
F The receptionist gave him a small white envelope with his name printed on the front.

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Ученик прочитал 64 страниц,что составляет 32 % количества всех страниц в книге. Сколько страниц в книге?

Ответы 1

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