Subject :IMO Class : Class 3

If X is a 4-digit number, then find X using the given clues.

• The sum of all its digits is 17.

• The sum of the digits at the tens and hundreds place is the digit at the thousands place.

• The digit at the ones place is one less than the digit at thousands place.

• The digit at tens place is twice the digit at hundreds place.

• The digit at hundreds place is 2.

A4625

B6425

C6245

D5246