There are six books kept in a steel rack and are pasted with signs as L, M, N, O, P and Q. M, P, N and Q have blue covers while others have red covers. L, M and Q are new volumes while the rest are old volumes. L, M and N are law books while the rest are engineering books. Then which new book of law book has a blue cover?

There are six books kept in a steel rack and are pasted with signs as L, M, N, O, P and Q. M, P, N and Q have blue covers while others have red covers. L, M and Q are new volumes while the rest are old volumes. L, M and N are law books while the rest are engineering books. Then which new book of law book has a blue cover? Correct Answer M

Signs: L, M, N, O, P and Q

Colour Blue : M, P, N and Q

Colour Red : L, O

New Volumes: L, M and Q

Old Volumes: N, O and P

Law Books : L, M and N

Engineering Books : O, P and Q

L and M are new volumes of Law books. Among these books L is a Red covered book, and M is a Blue covered book.

Hence, M is new volume of Law and have Blue colour.