Question 773920
Average price of Php350 for 30 bags
Total for 30 bags = 30 * 350 = Php10500
She got Php6,800 for 20 bags
The 10 bags left must have cost
Php10500 - Php6,800 = Php3700
Php3700 / 10 = Php370
The lady sold the last 10
bags for Php370 each.
Hope this helps.
:-)