On a hot summer day, 64 children each ate an ice cream in the morning and another in the afternoon. The ice creams were of four flavors: pineapple, banana, chocolate, and dulce de leche. The table given shows how many children consumed one of these flavors in the morning and another in the afternoon. For example, the single number 7 that appears in the table indicates that seven children had banana ice cream in the morning and chocolate ice cream in the afternoon.

|  | AFTERNOON |  |  |  |  |
| :---: | :---: | :---: | :---: | :---: | :---: |
|  |  | Pineapple | Banana | Chocolate | Dulce de Leche |
| M | Pineapple | 1 | 8 | 0 | 3 |
| O | Banana | 6 | 2 | 7 | 5 |
| R | Chocolate | 3 | 3 | 0 | 5 |
| N | Dulce de Leche | 2 | 9 | 9 | 1 |

How many children had ice creams of different flavors that day?
(a) 58
(b) 59
(c) 60
(d) 61
(e) 62
The correct option is (c).

Let's first analyze the information contained in the diagonal of the table indicated by the numbers inside the small squares.

|  |  | AFTERNOON |  |  |  |
| :---: | :---: | :---: | :---: | :---: | :---: |
|  | Pineapple | Banana | Chocolate | Dulce de leche |  |
| M | Pineapple | 1 | 8 | 0 | 3 |
| O | Banana | 6 | 2 | 7 | 5 |
| R | Chocolate | 3 | 3 | $\boxed{0}$ | 5 |
| N | Dulce de | 2 | 9 | 9 | $\boxed{1}$ |
| G | Leche |  |  |  |  |

These numbers indicate how many children had ice cream of the same flavor in the morning and in the afternoon: one had pineapple, two had banana, none had chocolate, and one had dulce de leche. All other students ate ice cream of different flavors in the morning and in the afternoon, for a total of $64-(1+2+0+1)=60$.