MCQ
The value of ${ }^6 \mathrm{C}_4$ is:
- 6
- 9
- 15
- 240
- A6
- B9
- ✓15
- D240
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$\frac{3}{{1! + 2! + 3!}} + \frac{4}{{2! + 3! + 4!}} + \frac{5}{{3! + 4! + 5!}} + ...... + \frac{{2008}}{{\left( {2006} \right)! + \left( {2007} \right)! + \left( {2008} \right)!}}$ is equal to