From the archive

Day 16

Wednesday, 19 August 2026

Intermediate

Check whether a retirement savings plan hits its target

FV projects what regular contributions grow into — turning that projection into a yes or no just takes a plain IF.

Task:

You advise clients on retirement accounts at a financial planning firm. One client plans to contribute $250 a month into an account earning 4.5% annual interest, compounded monthly, for the next 12 years. Work out the projected balance in B5, then in B7 report whether it clears the $50,000 goal in B6.

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.

Recent days

The last 14 days. Today's challenge is free while your streak is alive; Pro opens every past day too.