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If 50% of a number is 100 and 20% of the same number is 40, find 70% of that number.
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If 50% of a number is 100 and 20% of the same number is 40, find 70% of that number.

User Joe Maffei
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1 Answer

4 votes
I think the answer is 140

Steps:
The number is 200 as 50% of this would be 100 so in order to work out 70% you will do:
10%=20
20 x 7=(70%)140
User Franky
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