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Middle school math prob?
IF Susie put 10 pieces of paper on a table, each containing one of the first 10 positive multiples of 7. Carl then removed all the pieces of paper that contained a number which was a multiple of 3 or 5. He then then removed any even numbers. Find the sum of any remaining numbers.
3 Answers
- ?Lv 51 decade agoFavorite Answer
7
14 - removed
21 - removed
28 - removed
35 - removed
42 - removed
49
56 - removed
63 - removed
70 - removed
The sum of the remaining is 56.
- 1 decade ago
First 10 multiples of 7 are 7, 14, 21, 28, 35, 42, 49, 56, 63, & 70.
If you remove anything that's a multiple of 3 or 5 you would get
7, 14, 49, & 56
If you remove even numbers you get
7, 49,
Then when you add them you get
56
So that's your answer(:
