If 5 students utilize 18 pencils in 9 days, how long at the same rate – McqOptions

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1.	If 5 students utilize 18 pencils in 9 days, how long at the same rate will 66 pencils last for 15 students?
A.	10 days
B.	12 days
C.	11 days
D.	None of these
Answer» D. None of these

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If 5 students utilize 18 pencils in 9 days, how long at the same rate will 66 pencils last for 15 students?