12. The average of 50 numbers is 30. If two numbers, 35 and 40 are discarded, then the average of the remaining numbers is nearly:
A.28.32
B.29.68
C.28.78
D.29.27
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Answer – (B)
Solution:
Total sum of 48 numbers = (50 * 30) – (35 +40)
= 1500 – 75
= 1425
Average =142548 = 29.68
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