Question

A plane MH370 is reported to have crashed somewhere in the rectangular region shown in fig. The probability that it crashed inside the lake (shown in the figure) is $\frac{P}{110}$ . Find the value of 'P'. Type the answer in the blank below:

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Answer 1

Solution: Area of the entire region where the helicopter can crash = (5.5$\times$10)km${}^2$ =55 km${}^2$

Area of the lake = (3$\times$3.5) km${}^2$ =10.5 km${}^2$

Probability that helicopter crashed inside the lake = $\frac{10.5}{55}=\frac{21}{110}$.
So, P = 21