The correlation coefficient between X and -X is -1.
Six friends F, G, H, I, J and K have different heights. G is taller than only K. F and H are taller than K but shorter than I, who is not the tallest. W...
Among seven students S, T, U, V, W, X and Y. X is heavier than Y but lighter than V. U is heavier than T. S is the heaviest. T is fourth heaviest. W is ...
Five persons M, N, O, P and Q have different heights. M is taller than Q and P. N is taller than O. M is not taller than N. Who among the following is ...
Five friends F, G, H, I and J have different heights but not necessarily in the same order. F is taller than G. J is taller than I, who is taller than G...
If the box S has 32 shirts, then what will be the possible number of shirts of P?
Who among the following have equal number of students ahead and behind to him?
Arun is elder to Bikaram while Charu and Dhanush are elder to Imran who lies between Arun and Charu. If Charu be elder to Bikaram, which one of the foll...
Which box is the heaviest?
E, F, G, H and I are five sisters. G is younger than only two persons. F is older than E but younger than G. I is not the oldest. Who is the oldest?
Which student is immediate taller than G?