In how many ways can five examination papers be arranged so that physics and chemistry papers never come together

In how many ways can five examination papers be arranged so that physi

1.	In how many ways can five examination papers be arranged so that physics and chemistry papers never come together
A.	31
B.	48
C.	60
D.	72
Answer» E.

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In how many ways can five examination papers be arranged so that physics and chemistry papers never come together

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