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A train time table must be compiled for ...

A train time table must be compiled for various days of the week, so that two trains twice a day depart for three days, one train daily for two days, and three trains once a day for two days. How many diferent time table can be compiled?

A

140

B

210

C

133

D

72

Text Solution

Verified by Experts

The correct Answer is:
B
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