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GATE 2020 CE (CE1) – Question 5

General Aptitude · Quantitative Aptitude: Algebra, Geometry and Mensuration · 1 mark · Multiple choice

Two positive numbers sum to 100. Subtracting 5 from each makes the product zero. Which is one original number?

  1. 80
  2. 85
  3. 90
  4. 95

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Show answer and explanation

Correct answer: (D) 95

Explanation

Let numbers be x and y. Since $(x-5)(y-5)=0$, one is 5. Their sum is 100, so the other is 95. **D**.