The average of 20 values is 27. If each value is multiplied by 3, then the new average is:
Answer & explanation
Correct answer: option 3
Sum of 20 values = 27 x 20 = 540
If each value is multiplied by 3, then new sum of 20 values = 540 x 3 = 1620
New average = \(\frac{1620}{20}\) = 81