Explanation:
The question wants us to find the quantity of rice grain the classroom will hold when the dimension of the classroom is 16cm x 12cm x 22 cm
To resolve the question, we will first have to find the capacity of the new volume
So, we can now rephrase the question as:
If a 5 cm cube holds 936 grains of rice, how many grains of rice will a 4224 cm cube hold
To do so, we have
Making x, the subject by cross multiplying as shown above
We will have the answer to be: