For the following questions answer them individually
O is the circum centre of the triangle ABC with circumradius 13 cm. Let BC = 24 cm and OD is perpendicular to BC. Then the length of OD is.
If x [-2 {-4 (-a)}] +5 [-2 {-2 (-a)}] = 4a, then x =
The selling price of 20 articles is equal to the cost price of 22 articles. The gain percentage is
If the length of a rectangle is increased by 10% and its breadth is decreased by 10%, the change in its area will be:
The shadow of a tower standing on a level ground is found to be 40 metre longer when the suns altitude is 30° than when it is 60°. Find the length of the tower,
| # | Name | Overall Score |
|---|---|---|
| 1 | Sakina Mansur Ansari | 5 |
| 2 | Stephen | 5 |
| 3 | Chandan Kumar | 5 |
| 4 | Sanjay Verma | 5 |
| 5 | AKSHAY SHARMA | 5 |
| 6 | Shubham Kumar | 5 |
| 7 | VIDYA BARNWAL | 5 |
| 8 | Prem Kumar | 5 |
| 9 | jagraj kashyap | 5 |
| 10 | Kapil Raj | 5 |
