Question 11
An electronic watch shows 7 o'clock thirty-one minutes on the surface of the watch as 7:31. From 7:00 to 8:00 in the morning, how many times will three distinct digits appear as a point of time on the surface of watch?
IMAS 2019 — Middle Primary Grades 3–4 — Round 2 Question 11
IMAS · IMAS 2019 — Middle Primary Grades 3–4 — Round 2