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18-05-2016
Mathematics

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Verified Answer :

mecca99 mecca99

18-05-2016

1) 3/5=9/x (cross multiply)
3x=5(9)
3x=45
x=15

2) 2/4=x/12   (cross multiply)
2(12)=4x
   24=4x
   6=x

3) 10/x=5/9   (cross multiply)
10(9)=5x
90=5x
18=x

4) 5/6=x/18
5(18)=6x
90=6x
x=15

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