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Two cars start moving from the junction ...

Two cars start moving from the junction point of two perpendicular roads with velocity 30 km/h and 40 km/h. The rate at which thay are separating is

A

35 km/h

B

30 km/h

C

10 km/h

D

50 km/h

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WB JEE PREVIOUS YEAR PAPER-QUESTION PAPER 2007-MULTIPLE CHOICE QUESTIONS
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