Praxis 5511 Practice Question
Each book of stamps at a post office contains 20 stamps. Ron buys 1 book of stamps. Joan buys 6 books of stamps and then uses 2 stamps. How many stamps do Ron and Joan now have?
Correct Answer: C
Rationale: To determine the total number of stamps Ron and Joan have, we start by calculating the stamps each person bought. Ron purchases 1 book of stamps, which contains 20 stamps. Joan buys 6 books, yielding 6 x 20 = 120 stamps. After using 2 stamps, Joan has 120 - 2 = 118 stamps left.
Adding Ron's and Joan's stamps together gives us 20 (Ron) + 118 (Joan) = 138 stamps. However, the question asks for the total number of stamps they initially had, which is 20 + 120 = 140.
None of the other options (A: 8, B: 28, D: 478) represent the correct total of stamps, confirming that the understanding of the problem and calculations are key to arriving at the correct answer.
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