QUESTION:

If a customer bought 6 units of AB12 and 12 units of DE25, how much will they pay in total in Australian dollars (including any discounts on offer)?

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Correct Answer: c)

EXPLANATION:

1 unit of AB12 normally costs $200. If you buy 3, you get them for the price of two (2*$200=$400). Therefore, you can get 6 units of AB12 for:

$400*2=$800


1 unit of DE25 normally costs $260. If you buy 4, you get them for the price of 3 (3*$260=$780). Therefore, you can get 12 units of DE25 for:

$780*3=$2340


The total cost of buying all the units is:

$800+$2340=$3140

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