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This is a Matrix question. 

   Day 1  Day 2  Total  
Male 100u   130u  
Female  100u + 60  80u + 48  
   200u + 60  210u + 48  

210u + 48 = 573

210u = 573 – 48 = 525

1u = 525 ÷ 210 = 2.5

a)

200u = 200 × 2.5 = 500

500 + 60 = 560

b)

560 +573 = 1138

55 × 90% = 49.50

1138 × 49.5 = $56331

 

 

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