If ${\left( {2 + \frac{x}{3}} \right)^{55}}$ is expanded in the ascending powers of $x$ and the coefficients of powers of $x$ in two consecutive terms of the expansion are equal, then these terms are
If ${\left( {2 + \frac{x}{3}} \right)^{55}}$ is expanded in the ascending powers of $x$ and the coefficients of powers of $x$ in two consecutive terms of the expansion are equal, then these terms are
- [JEE MAIN 2014]
- A
$8^{th}$ and $9^{th}$
- B
$7^{th}$ and $8^{th}$
- C
$28^{th}$ and $29^{th}$
- D
$27^{th}$ and $28^{th}$
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