Question

A circular dashboard of radius 2.0 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery?

A. .25
B. .75
C. 1
D. 1.5

Explanation

for the point to be closer to the centre it cshould lie within the area of 1ft radius of the board
so probability=(1^2)/(2^2)=.25


Popular Videos

communication

How to improve your Interview, Salary Negotiation, Communication & Presentation Skills.

Got a tip or Question?
Let us know