MCQ
$\left|\begin{array}{cc}3 & 5 \\ 2 & x\end{array}\right|=2 \quad \therefore x=\cdots \cdots$
- A3
- ✓4
- C-3
- D-4
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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 |
