The present average age of Rachel and Ross is 34 years. Find the average age of Ross and Rachel after 6 years.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 40 years.
Sum of the age of Rachel and Ross = 34 × 2 = 68
After 6 years, the sum of the ages of Rachel and Ross = 68 + 12 = 80
We know that,
Average = Sum of observations/Number of observations
Required average age = 80/2 = 40 years.