Question

In the following letter sequence, some of the letters are missing. These are given in order as one of the alternatives below. Choose the correct alternative.
$\alpha \beta$ ___ $\alpha \alpha$ ___ $\beta \beta \beta$ ___ $\alpha \alpha \alpha$ ___.

• A. $\alpha \beta \beta \alpha$
• B. $\beta \alpha \beta \alpha$
• C. $\alpha \alpha \alpha \beta$
• D. $\alpha \beta \alpha \beta$

Answer 1

The correct option is B $\beta \alpha \beta \alpha$

It follow a pattern :

$\alpha \beta \underset{–}{\beta },\alpha \alpha \underset{–}{\alpha },\beta \beta \beta \underset{–}{\beta },\alpha \alpha \alpha \alpha \underset{–}{\alpha },\beta \beta \beta .......$.

Thus, the missing letters are $\beta \alpha \beta \alpha$.

Hence, option B is correct.