Reciprocal of Primes - Quant Trader Interview Question
Difficulty: Medium
Category: Mental Math & Estimation
Practice quant interview questions from top firms including Jane Street, Citadel, Two Sigma, DE Shaw, and other leading quantitative finance companies.
Topics: mental-math, fractions, decimals, arithmetic, probability
Problem Description
In options trading and probability sizing, you often need to convert odds (fractions) into probabilities (decimals) instantaneously to assess edge. While $1/10$ ($0.10$) and $1/2$ ($0.50$) are trivial, prime denominators often trip up candidates.
Calculate the decimal expansion of the following fraction:
$$\frac{1}{11}$$
Practice this medium trader interview question on MyntBit - the all-in-one quant learning platform with 200+ quant interview questions for Jane Street, Citadel, Two Sigma, and other top quantitative finance firms.