Answers

2016-03-10T07:25:20+05:30
C. cross multiplication
For eg. let x be the unknown number,
5:x::5:7
5/x=5/7
when cross multiplying you will get,
7*5=5*x
35=5x
x=35/5
x=7

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2016-03-10T16:15:21+05:30