If you count from 1 to 100 how many 6's will you pass on the way?

Answer 1

This common question is ambiguous and needs more detail. Variations of the answer with explanations are below.

[Literal Sense]

1 is the answer because the actual number '6' (by itself) only occurs once.

[The Digit 6]

20 is the answer because, the digit 6 appears 20 times in this example:

6, 16, 26, 36, 46, 56, 60, 61, 62, 64, 64, 65, 66, 67, 68, 69, 76, 86, 96

[The Number 6]

9 is the answer.

These would be the numbers in which '6' occurs:

6, 16, 26, 36, 46, 56, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 76, 86, 96

This is because one does not count the digits that represent values other than 6 (i.e. 60, 600, 6000, etc.). So, in this case, those with a strikethrough are uncounted. Simply, 6's are only counted in the ones place value.

Answer 2

20:

1.) 6

2.)16

3.)26

4.)36

5.)46

6.)56

7.)60

8.)61

9.)62

10.)63

11.)64

12.)65

13/14.)66 (there are 2 sixes)

15.)67

16.)68

17.)69

18.)76

19.)86

20.)96

Answer 3

6, 16,26,36,46,56,60,61,62,63,64,65,66 (that's two 6's) 67,68,69,76,86,96

I count 20