
Problemas de Matemática %
Authored by Jessica Vianna
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9th Grade

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10 questions
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1.
OPEN ENDED QUESTION
3 mins • 1 pt
Calcule 20% de 150.
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2.
OPEN ENDED QUESTION
3 mins • 1 pt
Se 30% de uma quantia é igual a 90 reais, qual é o valor dessa quantia?
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3.
OPEN ENDED QUESTION
3 mins • 1 pt
Um produto custa originalmente 80 reais e é vendido com um desconto de 25%. Qual é o preço com o desconto?
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4.
OPEN ENDED QUESTION
3 mins • 1 pt
Se um salário de 2.000 reais aumenta em 15%, qual é o valor desse salário depois do aumento.
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5.
OPEN ENDED QUESTION
3 mins • 1 pt
Um restaurante aumenta seus preços em 10%. Se uma refeição custava originalmente 50 reais, quanto custa agora depois do aumento?
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6.
OPEN ENDED QUESTION
3 mins • 1 pt
Se 15% dos alunos de uma escola são estrangeiros e há 500 alunos no total, quantos alunos não são estrangeiros?
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7.
OPEN ENDED QUESTION
3 mins • 1 pt
Uma loja vende um produto por 120 reais, o que representa um lucro de 20% sobre o preço de custo. Qual é o preço de custo do produto?
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