The total number of problems in the mathematics and algebra books is 28 more than the total number of problems in the algebra and geometry books. How much lesser is the number of problems in the geometry book as compared to the mathematics book?
Options:
(A) 30
(B) 18
(C) 28
(D) 25
(E) 32 Think first, then make a decision. Some random thoughts:
(Mathematics + Algebra) - (Algebra + Geometry) = 28
Mathematics - Geometry = 28 So the answer is (C).