Question

I am a 5 digit number. My tens digit is 2. My ones and hundreds digit is twice the tens digit. My thousands digit is one substracted from the product of the ones and tens digit. My ten thousands digit is the difference between the thousands and the tens digit. What number am 'I'?

Answer 1

Step 1:
Tens digit = 2
$\therefore$ Ones digit = $2\times 2=4$
Hundreds digit = $2\times 2=4$
Thousands digit = $(2\times 4)$ - 1
= 7
Ten thousands digit = 7-2 = 5
Step 2:
$\therefore$ The number is
TTh Th H T O
5 7 4 2 4