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Study Stuff for MCA Examinations - NIMCET
Study Stuff for MCA Examinations - NIMCET
Previous Year Question (PYQs)
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?
Solution
Take start as (0,0).
East 1 → (1,0)
South 5 → (1,-5)
East 2 → (3,-5)
North 9 → (3,4)
Distance from start
$= \sqrt{3^2 + 4^2} = 5$ km
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