EasyMath· Algebra· Linear equations in one variable· MCQ
A librarian has 43 books to distribute to a group of children. If he gives each child 2 books, he will have 7 books left over. How many children are in the group?
A
15
B
18
C
25
D
29
Correct answer: B
(parsed from the explanation — this source omits an answer key
for this item)
Explanation
Choice B is correct. Subtracting the number of books left over from the total number of books results in , which is the number of books distributed. Dividing the number of books distributed by the number of books given to each child results in .
Choice A is incorrect and results from dividing the total number of books by the number of books given to each child, , then subtracting the number of books left over from the result, . Choice C is incorrect and results from adding the number of books left over to the total number of books, , then dividing the result by the number of books given to each child, . Choice D is incorrect and results from dividing the total number of books by the number of books given to each child, , then adding the number of books left over, .
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id cb_question_bank:df996eee-d452-48c7-8ac8-3efa6578383d · question 46f68129 · IBN 06902-DC
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