The two formulas below

=LEN(A1)

=LEN(LEN(A1))

will always result in different answers.

Question

The two formulas below

=LEN(A1)

=LEN(LEN(A1))

will always result in different answers.

BlackTom AI · Accepted Answer

The question presents two Excel formulas and asks whether they will always yield different results.
Option 1: True. This would mean LEN(A1) and LEN(LEN(A1)) never produce the same value.
To evaluate this, first note that LEN(A1) returns the number of characters in the text in A1. This result is a number, say n. Next, LEN(LEN(A1)) means applying LEN to that number n, which Excel will coerce to text (e.g., 5 becomes the string "5"), and then count its characters. The outcome depends on how many digits the value of n has when written as text.
If A1 contains exactly one character, then LEN(A1) = 1, and LEN(LEN(A1)) = LEN(1) = 1. In this case, both formulas yield 1, so they are not different. Therefore, the claim that they will always be different is incorrect.
Option 2: False. This option asserts that the two calculations are not guaranteed to be different in all cases, which aligns with the scenario above where both results can be equal when A1 has length 1. Another scenario to consider is when A1 is empty: LEN(A1) = 0, and LEN(LEN(A1)) = LEN(0) = 1, which shows they can also be different in that case, reinforcing that they are not always different.
In summary, because there exist inputs for which LEN(A1) equals LEN(LEN(A1)) (for example, when A1 contains exactly one character), the statement that they will always produce different results is false. The distinction hinges on the digit-length of LEN(A1) when treated as text by LEN(), which can yield matching values in some cases and differing values in others.

COMM_V 205 101 102 103 2025W1 In-class Exercise (ICE) 6

The two formulas below =LEN(A1) =LEN(LEN(A1)) will always result in different answers.

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