exam Maths Puzzle Numerical Ability

The sum of two numbers is 31. Their difference is 9. What are the two numbers?

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exam Other Question

On an achievement test, ninth graders averaged 93% and eigth graders averaged 75%. A total of 90 students took the test and averaged 87%. How many ninth graders took the test? Solve this inequality: x + 8 > 20 Note there is a line under the greater than sign