MCQ
Three consecutive integers add up to $51.$ The integers are:
- A$17, 18, 19$
- B$18, 19, 20$
- ✓$16, 17, 18$
- D$15, 16, 17$
✓
Answer
Correct option: C.
$16, 17, 18$
Let the three consecutive integers be $x, x + 1, x + 2$
$x + (x + 1) + (x + 2) = 51$
$3x + 3 = 51$
$3x = 51 - 3$
$\text{x} = \frac{48}{3} = 16$
$x + 1 = 16 + 1 = 17$
$x + 2 = x + 2 = 18$
$x + (x + 1) + (x + 2) = 51$
$3x + 3 = 51$
$3x = 51 - 3$
$\text{x} = \frac{48}{3} = 16$
$x + 1 = 16 + 1 = 17$
$x + 2 = x + 2 = 18$
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