the sum of three consecutive odd numbers is 87 find the numbers

Question

the sum of three consecutive numbers is 87 find the numbers

 

Answer 1

using algebra...

x+(x+2)+(x+4)=87

3x+6=87

3x=81

x=81/3

x=27

x+2=29

x+4=31

 

using simple arithmetic...

if you have 3 consecutive integers, 3 consecutive even integers, or 3 consecutive odd integers, the middle one is the mean or average of the three integers

therefore...

87/3=29

29-2=27

29+2=31

27, 29, 31 again