GMAT prep - calculus | Mathematics | Page 1

vague quartz Jul 29, 2023, 3:38 PM

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Hey !

I'm studying for the GMAT and I'm struggling on a calcul. I would like to know what reasoning or the method you use.

The question is pretty easy to understand but I have to calculate this without using a calculator :

(254 x 61,2 + 270 x 83,87) / (254 + 270)

...and we have 1min20 to answer it

smoky fjordBOT Jul 29, 2023, 3:38 PM

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pseudo mulch Jul 29, 2023, 8:55 PM

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Start by splitting 83,87 into 61,2+22,67

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Then split the fraction into two pieces where one of the fractions has (254+270) in both the numerator and denominator.

#GMAT prep - calculus