The table given below shows the cost price and value of profit of 6 articles.
| Articles | Cost price | Profit |
| D | 700 | 200 |
| E | 600 | 150 |
| F | 400 | 300 |
| G | 500 | 400 |
| H | 300 | 250 |
| I | 800 | 350 |
Which of the following statement is NOT correct?
I. The profit of D,E and F is 30.63 percent of the cost price of G,H and I.
II. The ratio of total cost price to the total profit is 1:2.
If 2p + 5q = 12 and pq = 3, find the value of 4p2 + 25q2
What is the value of x2 + 4y2 + z2 - 4xy + 4yz - 2xz ?
What is \(\cosec 90^\circ \div (1 - \cos^2 60^\circ)\)