Question

Find the four consecutive numbers whose sum is 74 .

Answer 1

let the nos. be x, x+1,x+2,x+3
x+x+x+x+1+2+3=74
4x=74-6
4x=68
x=17
hence, nos. will be 17,18,19 and 20

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Answer 2

Let the numbers be y, y+1, y+2 and y+3
y+y+y+y+1+2+3=74
4y+6=74
4y=74-6=68
y=68/4=17
so the numbers are 17, 18, 19, 20