anceer wrote:
In a 100m, A beats B by 15m and B beats C by 10m. If A beats C by 5 sec then the speed of C.
A. 5m/sec
B. Speed of C can not be found with given data.
C. 4.7m/sec
D. 4m/sec
E. 4.5m/sec
Responding to a pm:
In the same time, A covers 100m and B covers 85 m.
SpeedA : SpeedB = 100:85 = 20:17
In the same time, B covers 100m and C covers 90m.
SpeedB : SpeedC = 100:90 = 10:9
SpeedA : SpeedB : SpeedC = 200:170:153
A covers 200m in the time that C covers 153 m so in a 100 m race, when A finishes, C
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