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Check whether the following sets of numb...

Check whether the following sets of numbers are in propotion or not in the given order.
`2,3,2016, 2019
(ii) 12, 15,32, 40

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The correct Answer is:
(i) Not in proportion (ii) In proportion
total number of students = 720
Number of grils = 720 - 300 = 520
Ratio of the number of grils to that of boys
` = 420 : 300 = 7 xx 60 : 5 xx 60 = 7:5`
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