The sum of three consecutive natural numbers is 90. Find the greatest number.

Answer

31

Explanation

Let the three consecutive natural numbers be (x-1), (x) and (x+1)
Given that
`(x-1)+(x)+(x+1)=90`
`x-1+x+x+1=90`
`x=(90)/(3)`
x=30 ltbrlt `:.` The three numbers are 30-1= 29, 30 and 30+1=31
`:.` The greatest number is 31