A missing helicopter is reported to have crashed somewhere in the rectangular region shown in fig. What is the probability that it crashed inside the lake shown in the figure?

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Solution

b'length of the rectangular field=9Km
breadth of the rectangular field=4.5Km
area of field,A=lengthbreadth
=94.5
=40.5 $K m^{2}$
length of the lake=(9-6)Km
=3Km
breadth of the lake=(4.5-2)Km
=2.5Km
Area of lake,a=3*2.5
=7.5 $K m^{2}$
$P r = \frac{a}{A} = \frac{7.5}{40.5} = 0.18$

Thus the probability that it crashed inside the lake is 0.18
'

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A missing helicopter is reported to have crashed somewhere in the rectangular region shown in fig. What is the probability that it crashed inside the lake shown in the figure?

b'length of the rectangular field=9Kmbreadth of the rectangular field=4.5Kmarea of field,A=length*breadth=9*4.5=40.5Km2length of the lake=(9-6)Km=3Kmbreadth of the lake=(4.5-2)Km=2.5KmArea of lake,a=3*2.5=7.5Km2Pr=aA=7.540.5=0.18Thus the probability that it crashed inside the lake is 0.18'