exam Maths Puzzle Numerical Ability

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The additive inverse of a number divided by 12 is the same as one less than 3 times its reciprocal. Find the number.

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exam Other Question

Solve s^2 = 9/4 A car can be rented from Continental Rental for $80 per week plus 25 cents for each mile driven. How many miles can you travel if you can spend at most $400 for the week? Can you help me figure this out? thanks