exam Maths Puzzle Numerical Ability

Solve the equation by using the quadratic formula.
2a^2-3a-2=0

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exam Other Question

Here is a tiring problem. The diameter of a car tire is approximately 60 centimeters. The warranty is good for 70,000 km. About how many revolutions will the tire make before the warranty is up? More than a million? A billion? the tickets to a concert cost $16.30 for the lower level and $5.50 for the upper level. A total of 16400 tickets were sold for a total amount of $183,080 How many upper level tickets were sold?