Question

It is greater than 100.
-Its tens digit is 2.
-Its hundreds digit is 1 less than the tens digit.
-The sum of its digit is 3.

Answer 1

Step-by-step explanation:

Let xyz be the number.

where

z= ones digit

y= tens digit

x= hundreds digit

given that

• xyz is greater than 100

xyz>100

• it's tens digit is 2

y=2

• it's hundreds digit is 1 less than the tens digit

x=y-1=2-1=1

x=1

• the sum of its digit is 3.

x+y+z=3

1+2+z=3

3+z=3

z=3-3=0

z=0

so, xyz is 120

Answer=120