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02-09-2016
Mathematics

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two numbers are in a ratio of 7:4. their sum is 220 find the bigger number

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dalendrk dalendrk

02-09-2016

7 : 4 ⇒ 7x : 4x

7x + 4x = 220
11x = 220 |divide both sides by 11
x = 20

7x = 7 · 20 = 140

Answer: The bigger number is 140.

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