Problema Solution
sara can type 90 word in 4 minutes. about how many words can she type in 10 minutes?
Answer provided by our tutors
let 'x' be the number of words that Sara can type in 10 min
since the number of words is directly proportional to the time we have:
90 : 4 = x : 10
by solving we find:
x = 225 words
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Sara can type 225 words in 10 minutes.