Question

Carlos Montado 出生于 $2002$ 年十一月 $9$ 日（星期六）。Carlos 满 $706$ 天时是星期几？

Carlos Montado was born on Saturday, November $9,$ $2002.$ On what day of the week will Carlos be $706$ days old?

星期一

Monday

星期三

Wednesday

星期五

Friday

星期六

Saturday

星期日

Sunday

计算 $706$ 除以 $7$ 的余数。

Reduce $706$ modulo $7.$

$700$ 天恰好是整数个星期。

$700$ days is an exact number of weeks.

星期每 $7$ 天循环一次。经过 $700$ 天后，星期仍然是星期六。

再过 $6$ 天后，就是星期五。

所以正确答案是 C。

The days of the week cycle every $7$ days. After $700$ days, the day of the week will still be Saturday.

After $6$ more days, the day of the week will be Friday.

Thus, C is the correct answer.