Question

A grading machine can grade 96 multiple choice tests in 2 minutes. If a teacher has 300 multiple choice tests to grade, predict the number of minutes it will take the machine to grade the tests

Answer 1

Answer:

in 1 minute machine grade 18 multiple choice tests

now

divide 300 by 18 = 3minutes and 30 sec approx

Answer 2

Given - Number of multiple choice test graded in 2 minutes = 96

Find - Number of minutes machine will take the machine to grade 300 tests

Solution - Machine can grade 96 tests in time = 2 minutes

300 tests will be graded in time = (2/96) * 300

Time taken to grade 300 tests = 6.25 minutes.

Therefore, machine can grade 300 tests in 6.25 minutes.