Question
The average of 8 numbers is 5.35. The average of the
first three of them is 4.15, whereas the average of the next three is 4.25. The average of the remaining two numbers is:Solution
Sum of 8 numbers = 5.35 × 8 = 42.8 Sum of first 3 numbers = 4.15 × 3 = 12.45 Sum of next 3 numbers = 4.25 × 3 = 12.75 Average of remaining two numbers = (42.8 – 12.45 – 12.75)/2 = 8.8
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