1.

The sum of three consecutive odd number is 20 ,find the middle number

Answer»

let the FIRST number be x

let the SECOND number be x+1

let the third number be x+2

x+x+1+x+2=20

3x+3=20

3x=20-3

3x=17

x=17/3

middle number=17/3+1

=6.66 approx ......ans



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