Logical reasoning question: how many jellybeans in a jar?
Logical reasoning questions are an important part of any consultant interview and understanding them will help you pass the job interview.
Today question is how many jellybeans in a jar, being able to answer this question will you help approach similar questions in any job interview.
The Answer we prepared for this question is the following:
To guess the number of jellybeans in a jar, you first measure it’s hight and it’s radius, then multiply pi by the radius squared. now you find the area of the jar, then multiply the area by the height to calculate space inside. Now since jelly beans don’t stack perfectly about 20% of the jar is filled with air meaning you should reduce the number by 20%, one jelly bean takes about 0.2 cubic inches. So divide the jar volume by 0.2 cubic inches to find the number of jelly beans in a jar. You will then have a solid guess of how many jelly beans in a jar.