Each question below is followed by two statements I, II, and III. You have to determine whether the data given in the statements are sufficient for answering the question. You should use the data and your knowledge of mathematics to choose the best possible answer.

Find the two digit number.

I. The digit in units place is double the digit in tens place.

II. The difference between the number and the number obtained by switching the digits is 9.

III. The summation of the digits is 3