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  • Brainly User
2014-11-30T14:50:19+05:30
Assume number of boys to be 'x', then (x-14):p=3:10. You have number of boys, x = (3p+140)/10
3 4 3
2014-11-30T16:30:16+05:30

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Let total number of boys be  b.
ratio of boys after 14 boys leave is
       (b - 14) / p = 3 / 10
   =>     3 p = 10 b - 140
       =>  10 b = 3 p + 140

       = >  b = 0.3 p + 14

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