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Mathematics 14 Online
OpenStudy (alibaby):

A printer printed 68 letters in 4 seconds. If it prints letters at a constant speed, it can print ______ letters in 30 seconds. Numerical Answers Expected!

OpenStudy (priyar):

it is just ratio and proportion!

OpenStudy (priyar):

seconds letters 68 4 30 ? just cross multiply.

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