Fourth Grade Challenging Math------------------------------------------------------------------------------ 4-60) Answer 25 Solution: The sum of the first 3 numbers is 20 x 3 = 60. The sum of all 4 number is 60 + 40 = 100. The new average (of all 4 numbers) = 100/4 =25
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4-60) Answer
25
Solution: The sum of the first 3 numbers is 20 x 3 = 60.
The sum of all 4 number is 60 + 40 = 100.
The new average (of all 4 numbers) = 100/4 =25
