Answers

2014-12-04T19:03:53+08:00
Car A = 72 km/ hr
car B = 60 km / hr
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2014-12-04T20:49:58+08:00

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First Car=x
Second car=x-12

3x+3(x-12)=396
3x+3x-36=396
6x=432
x=72

The first car travels 72kmph and the second car travels 60kmph

Hope this helps =)

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