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There are three numbers which are in the...

There are three numbers which are in the ratio ` 3: 4/7: 2/5` if the sum of the numbers is 278 , then find the three numbers.

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The correct Answer is:
210,40,28
Ratio of the numbers
` = 3/1 : 4/7 : 2/5 = 105 : 20 : 14`
the required numbers are
` 105/(105+20+40) xx 278, 20/ (105xx 20 + 14) xx 278`
` 14/ (105 + 20 + 14) xx 278`
the answer is 210, 40 , 28
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