Question
The average of four consecutive numbers is 48. What is
the largest number in this group?Solution
ATQ,
Let the numbers be: x, x + 1, x + 2, and x + 3 ATQ: x + (x + 1) + (x + 2) + (x + 3) = 48 × 4 ⇒ 4x + 6 = 192 ⇒ 4x = 186 ⇒ x = 186 ÷ 4 = 46.5 Therefore, the largest number = x + 3 = 46.5 + 3 = 49.5
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