Question

Sum of a number and its reciprocal is 2. Then what is the number ?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

Answer:

A. 1

If the number is X X + 1/X = 2 X² + 1 = 2X X² - 2X + 1 = 0 X = 1