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A library has (x) shelves and each shelf has (x+2) books. The total number of books is (120). What is the number of shelves?
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Answer and explanation
Correct answer: (10)
The equation is (x(x+2)=120), giving (x=10). For total quantity, multiply number of groups by number in each group.
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What is the correct answer to this question?
(10)
Why is this the correct answer?
The equation is (x(x+2)=120), giving (x=10). For total quantity, multiply number of groups by number in each group.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Quadratic Equations. Topic: Word Problems and Applications.
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