1.

A racing track is a circular ring with inner diameter 140 m and track 7 m wide how much further does motorist on the outside rim travel when he goes round the circuit once than another who goes round the circuit on the side rim

Answer»

Given that the path is 7 M, the diameter of the OUTSIDE rim is :

140 + (7 × 2) = 154M

The circumference of the OUTER rim is :

22/7 × 154 = 484meters

The circumference of the INSIDE rim:

22/7 × 140 = 440 meters
​​
484 - 440 = 44 meters



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