B1. The selling price of two products A and B is N25. A profit of 20% is made from the sales of the mixture of 4 liters of A with 5 liters of B. if a profit of 25% is made from the sales of another mixture of 5 liters of A with 4 liters of B; find the cost price per liter of each of the two products.

(b) The cost of 40kg of apples and 44kgs of oranges is N100,000. The cost of 44kg of apples and 40kg of oranges is N94,000.

Calculate the cost of

Apples per kg.

Oranges per kg.

10kgs of apples and 5kg of oranges - as an Economist.