Update solution.md

Math.round(63.5) should return 64, not 63.

Author: kitiya

1-js/05-data-types/02-number/2-why-rounded-down/solution.md

@@ -28,6 +28,6 @@ Note that `63.5` has no precision loss at all. That's because the decimal part `
 
 
 ```js run
-alert( Math.round(6.35 * 10) / 10); // 6.35 -> 63.5 -> 63(rounded) -> 6.3
+alert( Math.round(6.35 * 10) / 10); // 6.35 -> 63.5 -> 64(rounded) -> 6.4
 ```