Racing Cars | PuzzledQuant

New on YouTube: This HRT Quant Interview Question Has a One-Line Answer - Watch now

Get quant-ready in 2026

⚡ Build the skills to land top-paying quant jobs. Offer ends in 25d 09h 52m 54s25 days 9 hours 52 minutes 54 seconds.

Easy

Probability

Three cars are racing. Exactly one wins. The fastest car wins with probability $7/10$ , the slowest car wins with probability $1/10$ , and the remaining (middle) car wins with probability $1/5$ .

You pick one of the three cars uniformly at random to cheer for, and it turns out your car did not win. What is the probability that you picked the slowest car? Give your answer as a decimal.

Discussion (0)