Question
The figure is not drawn to scale. Two balls, N and P, turn and move along the line QR in opposite directions. The radius of N is 20 m. The ratio of the diameter of Ball N to that of Ball P is 7 : 4. If Ball N turns 6 rounds and Ball P turns 4 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, N and P, turn and move along the line QR in opposite directions. The radius of N is 20 m. The ratio of the diameter of Ball N to that of Ball P is 7 : 4. If Ball N turns 6 rounds and Ball P turns 4 rounds, how far apart are the centres of the balls? (Take π = 3.14)