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The average of five numbers is 149. If one of the numbers is 187, what is the average of the remaining four?

  1. 123

  2. 129

  3. 131

  4. 157

The correct answer is: 131

We can find the average by dividing the sum of the five numbers by 5. In this case, the sum of the five numbers is 149 x 5 = 745. If we subtract 187 (the given number) from the sum, we are left with 745 - 187 = 558. Therefore, the sum of the remaining four numbers is 558. To find the average, we divide 558 by 4, giving us 558 ÷ 4 = 139.5. This means that the average of the remaining four numbers is 139.5, which is closest to 131 (choice C). Assuming the other options are other possible averages of the remaining four numbers, they are incorrect because they do not consider the initial average given or the specific number (187) that is taken out from the sum. Option A (123) is too