B.Ed (CHANDIGARH) 2018 Entrance Exam With Answers

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78.

A man walks 1 km towards East and then he turns to South and walks 5 km. Again he turns to East and walks 2 km, after this he turns to North and walks 9 km. Now, how far is he from his starting point?

A: 7 km
B: 4 km
C: 3 km
D: 5 km

The answer is: D

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Explanation

Correct option is D)

According to given conditions,

PGREF-246

In ΔAFE

$AC^2 = AB^2 +BC^2$
$AC^2 = 3^2 + 4^2 ⇒AC= \sqrt{25}$ = 5km
Hence, option 'D' is correct.