Answer:
1000 : 1000 : 1500
Explanation:
you divide 3500 into 7 and find the answer = 500
then 500 x 2 = 1000,
500 x 3 = 1500
2 + 2 + 3 = 7
3500 ÷ 7 = 500
2 × 500 = 1000
3 × 500 = 1500
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