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Two forces whose magnitudes are in the ratio 3 : 5 give a resultant of 28 N if the angle between them is 60°, then the magnitude of the two forces are : 

(A) 18 N and 30 N 

(B) 12 N and 20 N 

(C) 3N and 5N 

(D) 9N and 15N

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Correct option (B) 12 N and 20 N

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