What is an implied main idea sentence?
the main idea that is not stated in the text.
the main idea that is stated in the text.
the main topic in the text. it will be one word.
the details in the text.

The main idea that is NOT stated in the text

The main idea that is not stated in the text.

Explanation:

As it is implied, it is not explicitly stated- you have to use inference. For example:

John was at the bus stop. He continuosly peeked his head at the timetable; checking every second to see if the bus was making its way round the corner.

Main idea- John is waiting for the bus

Implied main idea- John was getting impatient and needed the bus to come now.

the answer is five curious-looking beans