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Desafios de Porcentagem

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About this activity

Problemas de porcentagem

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Brazil

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Desafios de Porcentagem
 

Desafios de PorcentagemOnline version

Problemas de porcentagem

by Prof Glenda
1

Um produto estava custando 200,00 e teve 15% de desconto. Qual o novo preço?

2

Uma loja aumenta o preço de 120,00 em 25%. Qual o novo preço?

3

Se 40% de 250 é igual a X, qual X?

4

Uma turma tem 28 alunos, 25% estão ausentes. Quantos estão presentes?

5

Um diploma custa 800,00 com 12% de taxa adicional. Qual é o total?

6

Um carro com preço de 60.000,00 sofre depreciação de 8% ao ano. Valor após 1 ano?

7

Em uma pesquisa, 60% dos entrevistados aprovam, total de 300 pessoas. Quantos aprovam?

8

Uma receita rende 250 ml com 20% de álcool. Qual é o volume de álcool?

Explicação

40% de 250 = 0,4×250 = 100.

25% ausentes equivalem a 7; presentes = 28-7 = 21.

Taxa de 12% sobre 800 resulta em 96; total = 896.

Depreciação de 8% de 60.000 = 4.800; restante 55.200.

60% de 300 = 0,6×300 = 180.

20% de 250 ml = 0,2×250 = 50 ml de álcool.

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