book Maths Puzzle Numerical Ability

$65.00 was the quoted price on a yard of cement, but the actual price was $74.40 which included 6% sales tax. What was the percent of increase from the actual price and the quoted

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One positive number is 8 more than another. The sum of their squares is 130. Find both numbers. in our class for algebra 2 we are working on probablity and also permutations and combinations.

a test contains 20 questions. the teacher asks you to answer 15 questions. How many different ways can you answer 15 questions.