Question

find the three numbers if the sum of the AP is 27 and the third number is double the first number​

Answer 1

Answer:

6, 9, 12

Step-by-step explanation:

since sum = 27 and there are 3 numbers,

middle number = 27/3 = 9

let first number a

then 3rd number = 2a

2nd number = a+2a / 2

9 = 3a / 2

a = 9 × 2/3

= 6

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