Question

A teacher grades 27 tests in 3 hours How many tests can the teacher grade in 8 hours if he works at the same rate

Answer 1

Answer:

72 tests

Step-by-step explanation:

lets put this in a ratio

27 (tests) : 3 (hours)

now we simplify by dividing each side by 3

9:1

Now we must find 8 hours so multiply each side by 8

72:8

the teacher will grade 72 tests in 8 hours

Answer 2

Answer:

72 tests

Step-by-step explanation:

Lets find how many are graded per hour:

27 ÷ 3 = 9

9 tests per hour

9 · 8 = 72

72 tests

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