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The average of five results is 46 and that of the first four is 45. The fifth result is?
Question 1:
The average of five results is 46 and that of the first four is 45. The fifth result is?
A.
1
B.
10
C.
12.5
D.
50
Feedback
5 * 46 – 4 * 45 = 50
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