Not every difficult MCAT question is inherently tough. You may find yourself faced with a potentially easy physics or chemistry MCAT question, only made tough by the detailed and tedious math required.
This is especially true when fractions are involved, in the form of dimensional analysis, ratios, proportions, or finding percent values. The math is certainly doable using pen and paper, but is it worth the time wasted?
The video below shows you how to quickly tackle fractions, ratios, percentages and proportions on MCAT style questions without a calculator.
MCAT Fractions, Ratios, Percentages, and Proportions
(click here to watch on YouTube or catch the video transcript here)
MCAT Questions Solved In This Video:
Molarity Question: Find the molarity of a solution made by dissolving 35g of NaBr in 500 ml of water
Hybridization Question: Find the percent ‘d’’ character in a molecule that has sp3d hybridization
Gravitational Force Question: What is the gravitational force on a planet if the mass is 3 times the mass of earth but its radius is only 2 times the radius of the earth?
This is video 5 in my series on MCAT Math Without A Calculator. Click HERE for the entire series
hi, wonderful stuff.
you solved the fraction ” 7/33 ” , by making ” 33 ” into a hundred by multiplying ” 33 with 3 “. okay.
But what if I’m asked a question, ” 7/44 “. How do I make the ” 44 ” to a hundred.
Regards.
I’d find another way to round. 7/44 is close to 7/42 which is 1/6