Question 2
To make a magic potion, Harry Potter needs five kinds of herbs: liquorice (cam thảo), pseudoginseng (tam thất), artichoke (ác-ti-sô), ming aralia (đinh lăng) and bitter melon (mướp đắng). Each amount must be weighed exactly using the balances shown. He needs 7 grams of artichoke. Treat the weights of the balances as negligible.
Using the picture, how many grams does he need of each of the following?
– Ming aralia
– Bitter melon
– Pseudoginseng
– Liquorice

Using the picture, how many grams does he need of each of the following?
– Ming aralia
– Bitter melon
– Pseudoginseng
– Liquorice
