Question (23/53)
A car travelling with 5/7 of its actual speed covers 42 km in 1 hr 40 min 48 sec. What is actual speed of the car ?(A) 20 km/hr
(B) 25 km/hr
(C) 30 km/hr
(D) 35 km/hr
Question (24/53)
A car travels the first one-third of a certain distance with a speed of 10 km/hr, the next one-third distance with a speed of 20 km/hr and the last one-third distance with a speed of 60 km/hr. The average speed of the car for the entire journey is ?(A) 18 km/hr
(B) 24 km/hr
(C) 30 km/hr
(D) 36 km/hr