The current price of ADA is $0.08345541. If you invest $10000 to buy ADA at this price, you will also get $20000 when ADA reaches $0.1671082.
Am I right?
you are right and wrong at the same time. the math is correct since you are talking about a 2x rise and ignoring the fees since they are small and can be ignored but the part i emphasized in your comment is the wrong part. it is not "when" but it is about "IF" and also it is about a ton of other considerations.
basically a 100% rise or even more like 10000% rise are things that have commonly occurred in the altcoin market and they are referred to as pumps. it is always easy to pump a low price shitcoin that much but the risks involved are also that much higher.
for example if we rate the "risk" from 0 to 100. when you invest in bitcoin and make 100% profit, you are taking a risk around 20 but when you invest in an altcoin you are taking a risk around 90 because of that manipulation and unexpected nature of pump and dumps and the fact that you can just as easily lose your money in the same altcoin if you get unlucky.