Question

Three consecutive numbers average is 18 find largest of these

Answer 1

Answer:

largest number is 19

Step-by-step explanation:

let the numbers be x, x+1, x+2

average of the three numbers is 18

$\frac{x + x + 1 + x + 2}{3} = 18 \\ \frac{3x + 3}{3} = 18 \\ \frac{3(x + 1)}{3} = 18 \\ x + 1 = 18 \\ x = 18 - 1 = 17 \\ the \: three \: numbers \: are \: \\ x = 17 \\ x + 1 = 17 + 1 = 18 \\ x + 2 = 17 + 2 = 19 \\ 17 \: \: \: 18 \: \: \: 19\\ largest \: number \: is \: 19$