void setup() {
  Serial.begin(9600);
  int count, sum = 0 ;
  int arr[10] = {10,45,98,56,78,90,24,37,49,19};
  for (int i = 0; i <= 9; i++) {
    if (arr[i] % 2 == 0) {
      count = count + arr[i];
      sum = sum + 1 ;
    }

  }
  float avarage = count / sum;
  Serial.print(avarage);
}
void loop() {


}