Correct Answer - Option 4 :
115 km
Given:
Distance AB = 30 km
Speed of cyclist from A = 23 km/h
Speed of cyclist from B = 17 km/h
Formula Used:
Speed = Distance/Time
Concept Used:
If two objects are moving in the same direction with speeds S1 and S2,
Their relative speed is S1 – S2
Calculation:
Their relative speed = 23 – 17 = 6 km/h
Time in meeting at point C = 30/6 = 5 h
Distance AC = Distance traveled by A = 23 × 5 = 115 km
∴ The distance between A and C is 115 km.