Correct Answer - Option 1 : 5/18
Given:
Sum of numbers = 15
Product of numbers = 54
Calculation:
Let the numbers be x and y
x + y = 15
xy = 54
According to question we have to find 1/x + 1/y
⇒ 1/x + 1/y = (y + x)/xy
⇒ 1/x + 1/y = 15/54 = 5/18
∴ Sum of their reciprocal is 5/18.
