Question
The figure is not drawn to scale. Two balls, C and D, turn and move along the line EF in opposite directions. The radius of C is 80 m. The ratio of the diameter of Ball C to that of Ball D is 7 : 2. If Ball C turns 10 rounds and Ball D turns 2 rounds, how far apart are the centres of the balls? (Take π = 3.14)
4 m

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The figure is not drawn to scale. Two balls, C and D, turn and move along the line EF in opposite directions. The radius of C is 80 m. The ratio of the diameter of Ball C to that of Ball D is 7 : 2. If Ball C turns 10 rounds and Ball D turns 2 rounds, how far apart are the centres of the balls? (Take π = 3.14)