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The product of two consecutive positive integers is 552. Which two integers are they?

Answer and explanation

Correct answer: 23 and 24

Let the smaller integer be (x); then the next integer is (x+1). Thus, x(x+1)=552, giving x^2+x-552=0. Factoring gives (x-23)(x+24)=0, so x=23 or x=-24. Since the integers are positive, x=23 is valid, and the numbers are 23 and 24. Exam tip: represent consecutive integers as x and x+1 before forming the quadratic equation.

Related tags

Quadratic EquationsWord ProblemsConsecutive IntegersWord Problems And ApplicationsMathematicsClass 10 Mcq

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