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In a class room there are 6 people and the weight of one of them, X, is twice the average weight of the other 5. What ...

On site from date of: 12 Jan 2008

Quiz / test: Numbers test: rezolvă probleme în limba engleză

Teste de Limba Engleză, English

Q
In a class room there are 6 people and the weight of one of them, X, is twice the average weight of the other 5. What fraction of the total weight of the 6 people is the weight of X?
- 1 2/3
- 2 1/3
- 3 1/2
- 4 1/7
- 5 2/7
- Correct answer: answer number 5 - 2/7
- 2 * Average / (2 * Average + 5 * Average) = 2/7

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Numbers test: rezolvă probleme în limba engleză