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Three blocks, P, Q and R of masses 5 kg,...

Three blocks, P, Q and R of masses 5 kg, 4 kg and 3 kg respectively are connected by a light inextensible string and they are moved on a smooth horizontal plane. If a force of 24 N is applied to the string connected to R, tensions `T_(1) and T_(2)` in the string are

A

20N, 5N

B

5N, 20N

C

10N, 18N

D

18N, 10N

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