Which statement correctly compares Katie's typing speed to the record typing speed.?

Question

Angie types 600 words in 5 minutes.

She compared her typing speed to the record typing speed for her school shown in the table:

Minutes 2 10 20

Words Typed 420 100 200

Choose the answer that correctly compares Katie's typing speed to the record typing speed for her school.

A . Angie types slower than the school record speed

B. Angie's typing rate is the same as the second speed for her

school

C. Angie types faster than the school record speed.

Answer 1

For each of these speeds, you would want to compare the unit rates which is the number of words typed in 1 minute.

For Angie: 600 words in 5 minutes is equivalent to 120 words in 1 minute (600 / 5 = 120 ).

The unit rates for the table would be:

420 words in 2 minutes is 210 words in 1 minute

100 words in 10 minutes is 10 words in 1 minute

200 words in 20 minutes is 10 words in 1 minute

Assuming that the record is the fastest speed of 210 words in 1 minute, Angie types slower than the record because her unit rate is 120 words in 1 minute.

The correct choice would be A. (Angie types slower than the school record.)