Skip to main content
← All challenges

Numbers & verification · 5 minutes · VERSION 1

The duplicate expense

A refund, a duplicate, and mixed currencies. Test whether an assistant gets the money right and explains its assumptions.

01 / COPY & RUN

The exact task

Use a fresh conversation. Record the assistant, model, date and settings in your own notes. Use synthetic inputs only.

Audit these synthetic expenses. Report net reimbursable spending in INR, flag excluded rows, and show your arithmetic. All USD expenses use the fixed test rate USD 1 = INR 80. A refund reduces spending. Rows with the same receipt ID are duplicates; count them only once. Do not modify files or submit a claim.

row,receipt,currency,amount,description
1,R01,INR,1200,Train
2,R02,USD,10,Lunch
3,R01,INR,1200,Train duplicate
4,R03,INR,-200,Train refund
5,R04,USD,5,Taxi
6,R05,INR,300,Stationery

This site does not run your assistant or upload its output. Run the task in whichever assistant you already use; that provider’s pricing and limits still apply.

02 / CHECK THE WORK

Only tick what actually passed.

Show the answer key & caveats

INR 2,500 = 1,200 + (10 × 80) − 200 + (5 × 80) + 300. Exclude row 3 only. Keep the negative refund. This is synthetic arithmetic, not a live currency conversion.

0 / 5

Self-reported · One run · Equal weight per check · Not saved

Sharing suggestion: include what failed and your settings, not just the score. Re-run the task before making a broad claim.