For how many of the integers from 100 to 999 inclusive is the product of its tens digit and its hundreds digit equal to its units digit?

A.
27
B.
32
C.
36
D.
40
Mathematics
Competition
Math League
Exam No:2016 First Round Grades 10-12 Year:2016 Question No:25

Answer:

B

Knowledge points:

G10-12 - Number Theory - Digit-Based Problems (Logic & Properties)

Solution:

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