If the mean of five numbers 1, 2, 3, 5, and x is 2.4, then find the value of x.
Answer & explanation
Correct answer: option 2
If the mean of five numbers 1, 2, 3, 5, and x =2.4
The sum of five numbers = 2.4 × 5 = 12
according to the question =
1 + 2 + 3 + 5 + x = 12
11 + x = 12
x = 12 - 11 = 1