Question

Of 132 examinees of a certain class, the ratio of passed to failed students is 9 : 2. If 4 more students passed, what would have been the ratio of passed to failed students?

Options

• 3 : 28

• 28 : 5

• 4 : 25

• 25 : 4

Answer 1

28 : 5

Explanation:

The original numbers are 108 passed and 24 failed. If 4 more students pass, the counts become 112 and 20, giving 112 : 20 = 28 : 5.