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2016 TIMC keystage2-EMIC team Question 7

xIMC · 2016 TIMC keystage2-EMIC team

Question 7

Mary has a three-digit number. The first two digits are the same but different from the third digit. Myra has a one-digit number. It is the same as the last digit of Mary’s number. How many different four-digit numbers can be the product of Mary’s and Myra’s numbers?