Question

A schoolteacher can grade 3 tests in 18

minutes. If class starts in 3 hours and
there are 27 tests to grade, will they
be done in time? (Note: First find how
many tests can be graded in 3 hours.)

Answer 1

She will have time to grade all of them.

Explanation:

It would take her 2.7 to grade all the test.