Engineering Board Exam Reviewer · Number & Digit Problems · medium
The product of two consecutive positive odd integers is 143. Find the larger integer.
- 11
- 15
- 13
- 12
Answer
C. 13
Solution
Let the integers be n and n+2: n(n+2)=143 n2+2n-143=0 (n-11)(n+13)=0. So n=11 and the larger integer is 13.
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