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Earn +20 ptsQ: What is the sum of 40 30 and 20?
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What is the sum of 20 and 40?
20 + 40 = 60
What is the sum of 20 plus 20?
the answer to 20 + 20 = 40
What is the sum of 20 plus 40 plus 70 plus 80?
the sum for 20 + 40 + 70 + 80 = 210
What is the sum between 10 and 30?
40
Jayant gets 3 marks for each right sum and loses 2 marks for each wrong sum He attempts 30 sums and obtains 40 marks The number of sums attempted correctly is?
3x + 2(30-x) = 40 3x + 60 - 2x = 40 x = -20
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