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0 votes
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in Simple Equation by (48.4k points)
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Sum of three consecutive number is 27. Find out that numbers.

2 Answers

+1 vote
by (50.4k points)
selected by
 
Best answer

Let three consecutive numbers are x – 1, x and x + 1.

According to question.
x – 1 + x + x + 1 = 27
⇒ 3x + 1 – 1 = 27
⇒ 3x = 27
⇒ x = 27/3 = 9
∴ x – 1 = 9 – 1 = 8
x = 9
and x + 1 = 9+ 1 = 10

So, three consecutive numbers are 8, 9 and 10.

+1 vote
by (714 points)
let 3 numbers be [x], [ x-1] , [x-2]

x + x - 1 + x -2 = 27

3x = 30

x = 10

x - 1 = 9

x - 2 = 8

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