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1. |
A stunt cycle has two wheels of differing diameters. The circumferences of the two wheels are 1.2 m and 0.7 m respectively. At some point the points touching the ground were marked with chalk. How far must the cycle move for the marks to touch the ground simultaneously again? |
A. | 8.4 m |
B. | 0.84 m |
C. | 1.2 m |
D. | None of these |
Answer» B. 0.84 m | |