Question

ali's typing rate between 8:00 am and noon is 48 words per minute . after lunch a lunch break, Ali's typing rate between 1:00 pm and 4:00 pm is 2,040 words per hour . what is Ali's average typing rate per minute for the whole time she works?

Answer 1

41 word/min

Explanation:

Before noon Ali works:

• 4 hours= 4*60 min= 240 min

She types:

• 240*48= 11520 words

After lunch she works:

• 4 hours

She types:

• 4*2040= 8160 words

Total Ali works= 4+4= 8 hours= 480 min

Total Ali types= 11520+8160= 19680 words

Average typing rate= 19680 words/480 min= 41 word/min