Question

please do this with full method
please help , it's urgent
best answer will be mark as brainliest​

Answer 1

Answer:

26,27,28

Step-by-step explanation:

let the 3 numbers be x, x+1 and x+2

Adding all 4

x + (x+1) + (x+2)=81

3x + 3=81

3x=81-3

x=78/3

x=26

x+1=27

x+2=28

Answer 2

Answer:

18, 27, and 36.

Step-by-step explanation:

Let the consecutive multiples of 9 are 9x, 9(x+1), 9(x+2)

Given, sum of the multiples is 81. so,

=> 9x + 9(x + 1) + 9(x + 2) = 81

=> 9x + 9x + 9 + 9x + 18 = 81

=> 27x + 27 = 81

=> 27x = 81 - 27

=> 27x = 54

=> x = 54/27

x = 2.

So,

the multiple of 9 are given by:

9x = 9 × 2 = 18

9(x + 1) = 9(2 + 1) = 9 × 3 = 27

9(x + 2) = 9(2 + 2) = 9 × 4 = 36

∴ Three consecutive multiples are 18, 27, and 36.

Hope it helps! Mark As Brainliest!