Excel INDEX Practice Question: Using INDEX with MOD, return the weekday name for the day number typed in D2…
The question
Using INDEX with MOD, return the weekday name for the day number typed in D2 and put it in E2. Day 8 starts again from Monday, so day 10 wraps around.
The data
| A | B | C | D | E | |
|---|---|---|---|---|---|
| 1 | Day | Day no. | Name | ||
| 2 | Mon | 10 | ? | ||
| 3 | Tue | ||||
| 4 | Wed | ||||
| 5 | Thu | ||||
| 6 | Fri | ||||
| 7 | Sat | ||||
| 8 | Sun |
The yellow cell is where your answer goes.
Show answer
Answer in E2: Wed
How it works
Explanation: MOD keeps the position between 1 and 7 however large the day number is. Subtract 1 before MOD and add 1 after so day 7 stays at 7.
Syntax: =INDEX(A2:A8,MOD(D2-1,7)+1)
MOD(10 - 1, 7) = 2, and 2 + 1 = 3. The third name is Wed.
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Returns the value at a given row/column position within a range. Pulling the Nth item from a list — often paired with MATCH to look up in any direction. Full INDEX guide.
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