Joke Collection Website - News headlines - What's wrong with this excel formula? Unable to execute

What's wrong with this excel formula? Unable to execute

First, the formula is wrong. It can be changed to this:

Errors in the writing format can be corrected as follows:

If (and (n3 >: = 10, N3= 19), "warning", if (and (20

Second: the logical judgment is not clear enough and there are mistakes. The optimized formula is:

= IF(N3 & gt; =60, "Warning 5", if (n3 >; =45, "Warning 4", if (n3 >; =30, "Warning 3", if (n3 >; =20, "Warning", if (n3 >; = 10, "Warning", "None"))

You can continue to communicate if necessary!