Question
Suppose you drop a tie at random on the rectangular region shown in the given figure. What is the probability that it will land inside the circle with diameter 1m?

Answer

Area of circle with radius 0.5m
A circle $=(0.5)^2=0.25\pi\text{m}^2$
Area of rectangle $=3\times2=6\text{m}^2$
Probability (geometric) $=\frac{\text{measured of specified region part}}{\text{measure of whole region}}$
Probability that tie will land inside the circle with diameter 1m
$=\frac{\text{area of circle}}{\text{area of reatangle}}$
$=\frac{0.25\pi\text{m}^2}{6\text{m}^2}$
$=\frac{1}{4}\times\frac{\pi}{6}$
$=\frac{\pi}{24}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free