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Displacement in 2D Motion

Preeti travel...

Question

Preeti travelled $3 x$ km distance by walk, $9 y$ km by cycle and $5$ km by bus. The total distance covered by Preeti is ____________.

A

(3 x - 9 y + 5)

km

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B

(3 x + 9 y + 5)

km

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C

(3 x - 9 y - 5)

km

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D

(9 x + 3 y - 5)

km

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Solution

The correct option is B $(3 x + 9 y + 5)$ km
Distance covered by walk $=$ $3 x$ km
Distance covered by cycle $=$ $9 y$ km
Distance covered by bus $=$ $5$ km
Therefore, total distance covered by Preeti $=$ $(3 x + 9 y + 5)$ km.

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