exam Maths Puzzle Numerical Ability

A car travels 60 miles in the same time that a car traveling 10 per hour faster travels 90 miles. What is the rate of each cars?

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exam Other Question

P=2x+2w for x In November the number of snow-tire changes was 6 less than 4 times the numver of tune-uos. if 12 tune-ups were done, how many snow-tire changes were made?