Puzzle : Solve this…

Solve this 👍,
A man 🚗 leaves from kerala🌴 with 3 sacks💰💰💰
of 30 coconuts each🌰.
He comes across 30 tolls🚦🚥 till he reached Bangalore🌃.

He has to give 1 coconut🌰 for each sack💰 containing coconuts🌰 as toll tax at every toll🚦🚥.

How much coconuts🌰 are left with him at Bangalore❓

Clue :
The answer is not zero…

See here for answer,