Correct Answer - Option 3 : 17
Given:
Average of first three numbers = 14
Average of last three numbers = 16
Total count of numbers = 4
Concept:
Average value = Sum of all values/Number of values
Calculation:
Let, the last number = x
According to the question,
⇒ 3 × 14 + x = 11 + 3 × 16
⇒ x + 42 = 59
⇒ x = 17
∴ Last number = 17