Question
Solve $3 x^2+11 x+10=0$, when $x \in I$ by factorisation.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

| Class interval (cm) | Frequency |
| 145 - 155 | 3 |
| 155 - 165 | 35 |
| 165 - 175 | 25 |
| 175 - 185 | 15 |
| 185 - 195 | 20 |
| 195 - 205 | 2 |