A is twice as old as B.If in 18 years A will be 5/4 times as old as B will be th (Read more... )
In how many ways is it possible to arrange 3red, 2 blue & 5 green balls (Read more... )
Let me see who is smarter in this group. Answer if u can. A very simple but conf (Read more... )
in how many ways can a caravan of 8 covered wagons from Arizona be arranged in a (Read more... )
a shipment of 12 television sets contains 3 defective sets . in how many ways ca (Read more... )
A scientific calculator which solves basic and advanced mathematical expressions step by step.