Final answer:
To solve the given problem, we need to set up and solve a system of equations using the information provided.
Step-by-step explanation:
Let's assume that the mother bought x kilos of mangoes and y kilos of atis.
According to the information given, the cost of mangoes per kilo is p60.00 and the cost of atis per kilo is p40.00. The total cost of mangoes can be calculated as x * 60, and the total cost of atis can be calculated as y * 40.
We know that the total cost of the fruits bought is p1000.00. Therefore, we can set up the equation x * 60 + y * 40 = 1000.
Since we have two unknowns in this equation, we need another equation to solve for x and y. We know that the total weight of the fruits bought is 20 kilos, so we can set up another equation: x + y = 20.
Solving these two equations simultaneously will give us the values of x and y.