Average of five numbers is 20. If each number is multiplied by 2, what will be the new average? पाँच संख्याओं का औसत 20 है। यदि प्रत्येक संख्या को 2 से गुणा किया जाए, तो नया औसत क्या होगा?
A
20 (20)
B
40 (40)
C
10 (10)
D
22 (22)
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Correct Answer 40
Explanation
If every term in a set is multiplied by a constant $k$, the average is also multiplied by $k$. New average $= 20 imes 2 = 40$.