Blockchain is a system in which data information is recorded in a very safe and accurate way that would make it difficult and even impossible to change,copy,hack or cheat any system of information or data.

All though I know the system can be hacked (which is highly difficult to do)

I will still bet on the blockchain anyday , I will definitely choose it over the centralised system cause the centralised is more pron and easily attacked.

also claims to reduce the cost of transactions by providing best opportunities to those without essay and better ways of business.

Yes the less transaction fees can be classied as not even a fee. Cause is so small that when pay it per transaction you don’t even see it.

It will make the value of business and make it to grow upto much more income

Yes this is possible as business who work or sell on the blockchain have the opportunity to be seen worldwide.