mihaylec

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Answers 4

 #2
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0

this answer is correct

Aug 29, 2022
 #6
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I think this is the right decision

possible last 2 digits(divisibility rule for four):

00

04

08

12

16

20

24

28

32

36

40

44

48

52

56

60

64

68

72

76

80

84

88

92

96

25 possibilities. Out of these, the ones ending with 0 don't work. (Can you see why?)

So, 00, 20, 40, 60, and 80 don't work. 

20 possibilities.

Aug 29, 2022
 #2
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0

How did you decide that? By what formula?

Jun 22, 2022