A man starts off on a journey. He travelled for 16 hours in total. First half of the distance was covered at 40 km/h and the second half at 60 km/h. What was the distance covered?
Answer & explanation
Correct answer: option 4
Let distance = 2D
According to question ,
\(\frac{D}{40}\) + \(\frac{D}{60}\) = 16 hours
\(\frac{5D}{120}\) = 16 hours
D = 16 × 24 = 384 km
2D = 2 × 384 = 768 km
So , Distance is 768 km