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Maths Puzzle
Numerical Ability
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y=4/3x-2
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In 1991, the life expenctancy of males in a certain country was 68.5 years. In 1996, it was 71.1 years. Let E represent the life expenctancy in year t and let t represent the num
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An experienced accountant can balance the books twic as fast as a new accountant, Working together it take the accountants 10 hours. How long would it take the experienced accountant workign alone?