Lesson: Ratios and Rates

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How do I know when to use ratios and when to use the speed-distance-time formulas?
gmat-admin's picture

You can use ratios for simpler motion if/when you're able to rewrite the information as "for every x there is y" (as mentioned in the video)

Will we have calculators for these type of questions?
gmat-admin's picture

Unfortunately no.

No calculators are permitted during the Math section of the GMAT.

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