En una caja hay 10 bolas amarillas, 12 azules y 15 verdes.? Cuál es el mínimo número de bolas que se debe extraer al azar de manera que se obtengan 10 del mismo color?

The minimum number of balls that must be drawn at random so that 10 of the same color are obtained is:

10

Step-by-step explanation:

We are given a information that:

In a box there are 10 yellow balls, 12 blue and 15 green.

We need to find the minimum number of balls one can draw at random so that 10 balls of the same color are obtained is 10.

(Since there are minimum number of yellow balls i. e. 10; so let us suppose that at the first 10 draws each time the yellow balls is drawn and hence all the yellow balls are obtained or it may be the case that all 10 balls drawn are green or all are blue.).