Land ProblemMath brain teasers require computations to solve.
A, B, and C each had land: am^2 (m^2=square meters), bm^2, and cm^2 (this is c square meter, not square centimeter!) big. A sold 1/4 of his land to B, then B sold 1/3 of the land he had (after he bought land from A) to C. If A, B, and C now have the same amount of land, what does (b+c)/a equal to?
HintI advise that you use a letter (ex: k) to compare the three measures.
(and just in case, 1/3 is read as one-third, and so on.)
(multiplication symbols are not written down)
a=(4/3)k, b=(7/6)k, c=(1/2)k
(b+c)/a = (7k/6 + 1k/2)/(4k/3) = (10k/6)(3/4k) = 5/4
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