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The average of 11 numbers is 20. If the average of the first six numbers is 19 and that of the last six numbers is 22, then the middle number is

A25

B22

C24

D26

Answer:

D. 26

Read Explanation:

Sum of 11 numbers = 20 x 11 =220 Sum of first 6 num: =19 x 6 =114 Sum of last 6 No. = 22*6 =132 Middle number = (114+132) -220 = 26


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