Day 67 · Friday, 9 October 2026
From the archive
Look up a consultant's billing rate from a two-way rate grid with INDEX and MATCH
A rate that depends on two things at once, not one, lives in a grid rather than a list — and INDEX can land on any cell in that grid once two MATCH calls work out which row and which column to use.
Task:
You handle billing for a management consulting firm. What a client gets charged per hour depends on two things together — the consultant's level and the client's service tier — so the rate card is laid out as a grid, one row per level and one column per tier, rather than a single list a plain VLOOKUP could read. For each engagement in A2:B5, use INDEX and MATCH in column C to pull the rate that matches both the level in column A and the tier in column B from the grid in E1:H5. Fill in rows 2 through 5.
The daily challenge is part of Pro
A new exercise every morning, plus every day that came before it — a back catalogue that grows by one a day, whether or not you were here for it.
Every day so far
Recent days
The last 14 days. Today's challenge is free while your streak is alive; Pro opens every past day too.
- 74Day 74 · Friday, 16 October 2026Build a sorted, duplicate-free category breakdown from a ticket log with UNIQUE, SORT and COUNTIFLatest
- Day 73 · Thursday, 15 October 2026Reduce a batch of screen resolutions to their simplest aspect ratio with GCD
- Day 72 · Wednesday, 14 October 2026Project a reserve fund that already holds a balance and gets monthly top-ups with FV
- Day 71 · Tuesday, 13 October 2026Rank sales reps by quarterly revenue and assign a bonus tier with RANK and nested IF
- Day 70 · Monday, 12 October 2026Decide which product returns qualify for auto-approval with OR wrapping two AND conditions
- Day 69 · Sunday, 11 October 2026Pull a payment term off the end of a purchase order number with a varying number of segments
- Day 68 · Saturday, 10 October 2026Roll a due date that lands on a weekend forward to the next business day with WEEKDAY
- Day 67 · Friday, 9 October 2026Look up a consultant's billing rate from a two-way rate grid with INDEX and MATCH
- Day 66 · Thursday, 8 October 2026Turn a route's duration in minutes into hours and minutes with INT and MOD
- Day 65 · Wednesday, 7 October 2026Queue a maintenance team's repair requests by priority without touching the log
- Day 64 · Tuesday, 6 October 2026Find how much loan principal a cargo van's payment plan pays off in its first year
- Day 63 · Monday, 5 October 2026Find the typical closing price and the most common bedroom count in last month's sales
- Day 62 · Sunday, 4 October 2026Count comma-separated labels on a support ticket, and flag the over-tagged ones
- Day 61 · Saturday, 3 October 2026Project each truck's next service date with EDATE, then flag which ones are overdue