Question

write the 3- digit number That answer the riddle. I have the same ones as Hundreds digit digit. the value of my tens digit is 50. The value of my ones digit is 4.

Answer 1

represent the digits as
xyz where they represent whole single digit numbers

same ones place as hundreds
x=z
xyx
value of 10s is 50
one is 4
therefor since 10s is 50 divide by 10 and get 5 for tens digit
y=5
ones is 4
ones=hundred
hundred=4
number is 454