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

$400$ $400$

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

$30 = \frac{3}{4} t \to t$ $30=3/4t rarr t$ represents the number of words Tim can type in a minute

$t = 40 \to$ $t=40 rarr$ Tim can type 40 words per minute

$32 = \frac{4}{5} j \to j$ $32=4/5j rarr j$ represents the number of words Justin can type in a minute

$j = 40 \to$ $j=40 rarr$ Justin can type 40 words per minute

In five minutes, Tim can type $40 \cdot 5$ $40*5$ words and Justin can type $40 \cdot 5$ $40*5$ words

$40 \cdot 5 + 40 \cdot 5$ $40*5+40*5$

$200 + 200$ $200+200$

$400$ $400$