Hai everyone! I have some quiz for you all. Here is the question........

There are 10 sachets fill with the same quantity of coins. However, one of those sachets
contain with fake coins. Each real coin weigh 1 gram and the fake coin weigh 0.9 gram each.
Here come the question, how many times do you need to weigh all of those coins, so you can
know which sachet is the fake one? Is it one time, two times, or even ten times.

If you just randomly pick one of the sachets, maybe you will get the fake one right away.
(the angel must be smilling beside you at that time).

The best answer would be once only. This trick required you to use your brain and apply your mathematic knowledge.

Well work hard to solve this problem. I will tell you the answer later. Sayonara.

by the way, the so called "Rifqi the Great" asked everyone to spend some time viewing this blog.