Two boys start running at the same time in the same direction at a speed of 10 km/hr and 12 km/hr respectively. In what time they will be 8 km apart?
Answer & explanation
Correct answer: option 2
Formulae:
Speed = \(\frac{ Distance}{Time }\)
12 - 10 = \(\frac{ 8}{Time }\)
Time = \(\frac{ 8}{2 }\) = 4 hours