MCQ
sec 60° = ?
- A$\frac{1}{2}$
- B2
- C$\frac{2}{\sqrt{3}}$
- ✓$\sqrt{3}$
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| Length ( in cm) | 2.0 – 2.5 | 2.5 – 3.0 | 3.0 – 3.5 | 3.5 – 4.0 | 4.0 – 4.5 |
| No. of nails | 5 | 18 | 7 | 11 | 9 |

| Blood group | O | A | B | AB |
| % Of persons | 60 | 20 | 15 | 5 |