Solve animals-and-legs count
Company: SIG (Susquehanna)
Role: Data Scientist
Category: Statistics & Math
Difficulty: easy
Interview Round: Online Assessment
In a barn are spiders, chickens, and cows. Spiders have 8 legs, chickens 2 legs, and cows 4 legs. There are 520 legs in total. The number of chickens is twice the number of cows, and the number of spiders is twice the number of chickens. How many chickens are there?
Overview: This question evaluates a candidate's ability to translate a word problem into a system of linear equations and perform basic algebraic manipulation and arithmetic to determine unknown quantities.