Word problem, Four apples ,three oranges and five pears cost a total of K26.50.If one apple cost K1.25 and and one pear cost K1.15 ,how much does one orange cost?

Let the cost of one orange be x.

The total cost of the apples is 4 * K1.25 = K5.00
The total cost of the oranges is 3 * x = 3x
The total cost of the pears is 5 * K1.15 = K5.75

The total cost of all the fruits is K26.50

So, K5.00 + 3x + K5.75 = K26.50
8x = K16.75
x = K2.09

Therefore, one orange costs K2.09.