exam
Maths Puzzle
Numerical Ability
if A and B are nxn matrices and AB=0. Show that rank(A)+rank(B)is less than or equal to n.
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exam Other Question
0.5 over a = 1.25 over 5 what is a?
a store owner had 225 suits. at the end of a sale he had sold 4/5 of them. How many suits were left?