two-balls
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Two balls are drawn from an urn containing 2 white 3 red and 4 black balls |
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1 | 1987 | July 17, 2019 |
| Two balls A and B of masses' and '2m' are in motion with velocities 2V |
|
1 | 2806 | July 12, 2019 |