book Maths Puzzle Numerical Ability

A roast was cooked at 325 °F in the oven for 4 hours. The internal temperature rose from 32 °F to 145 °F. What was the average rise in temperature per hour?

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book Other Question

The sum of two numbers is 25. Twelve less than four times one of the numbers is 16 more than twice the other number. Find both numbers. n^200<5^300 find the value 0f n.