Question
The average number of shortbreads in Box B, Box C and Box D is 39. Box B has 45 shortbreads. The number of shortbreads in Box C is twice the number of shortbreads in Box D. What is the number of shortbreads in Box D?
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The average number of shortbreads in Box B, Box C and Box D is 39. Box B has 45 shortbreads. The number of shortbreads in Box C is twice the number of shortbreads in Box D. What is the number of shortbreads in Box D?