Li Shi Ying then placed one stone from the three stones she needed to check out of the scales aside. Now, she put one stone on each side.
"! Ah, I get it! So, if the scales are balanced now, we know that the stone left is the one lighter and if the scales aren't balanced, we can guess which is lighter!"
Seeing what Li Shi Ying did, Long Ao Zhen quickly realized that what she was doing, was the true method to solving this problem. Oh God, it turned out to be so easy! Why the heck didn't he focus on three stones before??
KRIEET….
The scales moved again and this time, it was balanced. It means the one lighter than the rest was the stone Li Shi Ying didn't put on the scale, the one left behind.
"Here it is uncle, the stone that is lighter than the others." Li Shi Ying smiled as she gathered up the stones again and kept one which was different from the rest, so she could identify it now.
