can you become an Actuary if you study Accounting?what is the best way to become one and how long does it take

Answer 1

No.

Unless you study Actuarial Accounting. (Faculty of Business)

To become an Actuary takes several years. The *initial* schooling results in a Bachelor degree. (And you can even go for Masters or higher.)

Once you have your degree, the "fun" starts. You then have to begin your real training, which will take several more years.