What is the difference between the sum of the first three multiples of 9 and the sum of the first four multiples of 3?
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What is the difference between the sum of the first three multiples of 9 and the sum of the first four multiples
What is the difference between the sum of the first three multiples of 9 and the sum of the first four multiples of 3?
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Answer:
24
Step-by-step explanation:
1st 3 multiples of 9 = 9+18+27 = 54
1st 4 multiples of 3= 3+6+9+12 =30
The difference of their sum is 24
54-30 = 24