Answer: The correct option is A.
Step-by-step explanation:
It is given that Paydays are equally spaced through the year.
A calendar of a month with 31 days. Payday is every other Friday. The first payday is Friday the fourth. The second payday is Friday the eighteenth.
First payday is on 4th.
Second payday is on 18th.
It means the common difference is,
![18-4=14](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ns8huy99qsflw8pmwhrg91ekskr682zmxk.png)
It means the next payday is 14 day after 18th.
So the next payday is,
![18+14=32](https://img.qammunity.org/2019/formulas/mathematics/middle-school/kbxupd8xx5rwxckyvnuyxacpskqyhpaid8.png)
The next payday is on 32th but the month have only 31 days, therefore the next the days after 31 are the days of next month.
![32-31=1](https://img.qammunity.org/2019/formulas/mathematics/middle-school/8npwwgoqxcw2mi8u86gobm9n28qpkltx2r.png)
Therefore, the first payday of next month is on 1st and A is the correct option.