exam Maths Puzzle Numerical Ability

Could someone please take the time to help me solve the question: Solve the following system of two linear equations by substitution: x + 2 y - 8 =0 & 2 x + 4 y + 4 =0. Noting each

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exam Other Question

The number 1 is both a smute and thripe. If the integer s is a smute, then the next smute is s+5. If the integer t is a thripe, then the next tripe is 2t+1. What is the SMALLEST whole number GREATER than 1, that is both a smute and a thripe? faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Esceptions are allowed, but they want the averag