How many multiples of 3 are there in 100?

There are 33 multiples of three that fall between 1 and 100:

3

6

9

12

15

18

21

24

27

30

33

36

39

42

45

48

51

54

57

60

63

66

69

72

75

78

81

84

87

90

93

96

99