NTSE Stage 2 MAT 2015 Question Paper

Question : 2 of 100

Marks: +1, -0

Madhu walks 15 metres towards north, then she turns left at 90°and walk 30 metres, then turns right at 90°and walks 25 metres. How far, she is from the starting point and in which direction?

55mt., north-east
50mt., north-west
60mt., north
50mt., west

Validate

Solution:

From the given figure.

\CX=\BC+\BX

=(25+15)\m

(

\Since \OA=\BX

)

=40\m

∴ OC

=√{(\CX)^2+(\OX)^2}=√{(40)^2+(30)^2}

=√2500=50 \m

Hence from starting point, Madhu is in north-west direction.

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