Tim can type 30 words in 3/4 of a minute. Justin can type 32 words in 4/5 of a minute. How many words can Tim and Justin type altogether in 5 minutes?

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Answer 1 · 2018-04-28T20:18:18

#400#

First let's find how many words Tim can type in a minute and how many words Justin can type in a minute:

#30=3/4t rarr t# represents the number of words Tim can type in a minute

#t=40 rarr# Tim can type 40 words per minute

#32=4/5j rarr j# represents the number of words Justin can type in a minute

#j=40 rarr# Justin can type 40 words per minute

In five minutes, Tim can type #40*5# words and Justin can type #40*5# words

#40*5+40*5#

#200+200#

#400#