The average of five numbers is 30. If one number is excluded, ,the average becomes 31. What is the excluded number ?
Answer & explanation
Correct answer: option 1
Lets assume removed number is x
150 - x = 4 × 31
x = 26
The average of five numbers is 30. If one number is excluded, ,the average becomes 31. What is the excluded number ?
Correct answer: option 1
Lets assume removed number is x
150 - x = 4 × 31
x = 26