exam Maths Puzzle Numerical Ability

Solve the porportion

13. 12/54 = 8/w

Any help with this equation would be Greatly</b> appreciated.

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exam Other Question

In 2004.....my statement showing:

553808 : 142661 : 629461

2005 :

456621 : 071266 : 125034

2007 ? can you tell me what numbers my statement will show
There are pigs and chicken in the farm. The total no. of heads and legs of both animals is 100. How many pigs and chicken are there in the farm ?