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Question
It costs X taka each to make the first thousand copies of a CD and Y taka to make each subsequent copy. How many taka will it cost to make Z copies (Z is greater than 1000) of the CD?
1000X +YZ
1000(Z-X) + XY
1000 (Z-Y) +XZ
1000(X-Y) +YZ
ANSWER : 4
Descrption
For first thousand copies = 1000X tk As, Z is greater than 1000, we have to substract 1000Y from 1000X. And for extra copies, the cost = YZ So, the equation = (1000X - 1000Y) + YZ = 1000(X - Y) + YZ
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