Answer to Question #242843 in Microeconomics for Magdalena

Question

If in the same amount of time that it takes her to read 40 pages of economics and 30 pages of sociology, Martha could read 20 pages of economics and 110 pages of sociology, then which of these equations describes combinations of pages of economics, E, and sociology, S, that she could read in the time that it takes to read 40 pages of economics and 30 pages of sociology ?

A. E/2 = 50

B. 4E + S = 190

C. E + S = 70

D. E + S = 130

E. All of the above

Answer 1

Option D is correct

Explanation: She could read 20 pages of E and 110 pages of S in the given time. So, E = 20 and S = 110.

So, E + S = 110+20 = 130