Question

Sum of three consecutive number is 78

Answer 1

Let the three consecutive numbers be X, X+1, X+2

According to the question

X+X+1+X+2=78

3X+3=78

3X=78-3

3X=75

X=75÷3

X=25

X+1=26

X+2=27

Therefore three consecutive numbers are

25,26,27

Answer 2

let one number be x + 1

let second number be x + 2

let third number be x + 3

...............

x + 1 + x + 2 + x + 3 is equal to 78

3x + 6 is equal to 78

3 x is equal to 78 - 6

x is equal to 72 upon 3

x is equal to 24

Hence,

x+1=24+1=25

x+2=24+2=26

x+3=24+3=27

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