find the sum of all two digit odd multiples of 3
Answers
Answered by
4
15+21+27+33+39+45+51+57+63+
66+69+75+81+87+93+96+99
= 1053
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Answered by
2
Answer:
855
Step-by-step explanation:
To answer this question we need to list down all the two digit odd multiples of 3.
The list is as follows:
3 × 5 = 15
3 × 7 = 21
3 × 9 = 27
3 × 11 = 33
3 × 13 = 39
3 × 15 = 45
3 × 17 = 51
3 × 19 = 57
3 × 21 = 63
3 × 23 = 69
3 × 25 = 75
3 × 27 = 81
3 × 29 = 87
3 × 31 = 93
3 × 33 = 99
Since we now have the list we can sum the multiples as follows :
15 + 21 + 27 + 33 + 39 + 45 + 51 + 57 + 63 + 69 + 75 + 81 + 87 + 93 + 99 = 855
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