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4. A zoo is open for 10 1/2 hours every day. There

are two security guards on duty at a time and each
shift is 3 1/2 hours. How many shifts are there per
day?
A. 1 shift
B. 2 shifts
C. 3 shifts
D. 4 shifts

User SUX
by
8.1k points

1 Answer

4 votes

Answer:

C

Explanation:

This can come from process of elimination, 1 shift is not enough. 2 shifts, 3 1/2 + 3 1/2 is 7, meaning it still isn't enough. 4 shifts 7 + 7 is 14, making it to much.

User Antonio Rizzo
by
8.3k points
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