Objc: Loops

int main(int argc, char * argv[])
{
    @autoreleasepool {
 
        // ...

        NSArray *numbers = @[@10, @20, @25, @100];
        
        float sum = 0.0f;
        
        for (int i = 0; i < [numbers count]; i++) {
            NSNumber *number = numbers[i];
            sum = sum + [number intValue];
        }
        
        float average = sum / [numbers count]; // Should be 38.75

        NSLog(@"average = %.2f", average);

//        UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));
    }
}

NSArray Class Reference

2013-11-17 14:41:37.520 ObjcBasics[13163:a0b] average = 38.75