Question

A car completes a journey in seven hours. It covered half of the distance at 40 kmph and the remaining half at 60 kmph speed. Then, the distance (in km) covered is:

• A. 280
• B. 300
• C. 336
• D. 420

Answer 1

Answer:

C. 336

Average speed = (2 × Speed1 × Speed2)/(Speed1 + Speed2­) ⇒ (2 × 40 × 60)/(40 + 60) ⇒ 4800/100 ⇒ 48 km/hr Distance = Speed × Time ⇒ 48 × 7 ⇒ 336 km