Question

sum of three consecutive multiples of 12 is 144 find them

Answer 1

let the multiple be
x , x+12 , x+24

so,
x+x+12+x+24=144
3x+36=144
3x=144-36
3x=108
x=108/3
x=36

so the multiples are 36, 48 and 60.
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for check
36+48+60=144
our answer is right
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Answer 2

let the no.s be 12x, 12(x+1), 12(x+2)
12x+12x+12+12x+24=144
36x+36=144
36x=144-36
x=108/36=3
hence, no.s are 12*3=36 etc.
put value of x and find values of other no.s
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