The Matter of Split Bill Precision
A short fiction about three friends who said anything was fine and then spent forty minutes on the arithmetic anyway.
The dinner cost two thousand three hundred and forty rupees, split three ways.
"Anything is fine," said Priya.
"Same," said Karthik.
"Just split it equally," said Rohan.
The bill arrived. The equal split was seven hundred and eighty rupees each.
Karthik had not ordered a starter. Priya had ordered two glasses of wine. Rohan's main course had cost four hundred and fifty, which was significantly more than the others. These facts existed simultaneously in all three minds. Nobody mentioned them.
"Seven eighty each," said Rohan.
"Sure," said Priya.
The governing rule requires that a small fee may receive more scrutiny than the larger purchase that created it. One small amount receives special treatment through split bill precision.
Karthik opened a calculator. He was, he explained, not trying to be difficult. He was just, purely for curiosity, noting that the starters alone came to four hundred and eighty and that, given the distribution of those starters, a strict per-item accounting would produce a different result.
Nobody had asked for a strict per-item accounting.
"It's fine," said Priya.
The exception creates a personal rule for the next similar purchase. Soon the person is maintaining a private financial code more complicated than the spending it governs.
A revised split was proposed. Priya's wine was added. Karthik's missing starter was subtracted. Rohan's expensive main course was, after some negotiation, treated as a shared responsibility because everyone had taken a bite.
The revised amount came to seven hundred and eighty each.
They each paid seven eighty.
"That worked out," said Karthik.
"It usually does," said Rohan.
Priya said nothing. She was already calculating whether she would order wine next time, or whether the wine had introduced a variable that could not be reliably resolved in under twenty minutes.