Question

The speed of a truck is 324/8km/hr find the distance covered by the car in 40/36 hours.

Answer 1

Answer:

(ii) 25 km  

Speed (s1) = 40km/h  

Time (t1) = 15 mins = (15/60) hr  

Distance d1 = (s1 × t1) = 40 × (15/60) = 10 km  

Speed (s2) = 60 km/h  

Time (t2) = 15 min = (15/60) hour  

Distance (d2) = (s2 × t2) = 60 × (15/60) = 15 km  

Total distance (d) = (d1 + d2) = 10 km + 15 km = 25 km

Step-by-step explanation:

Answer 2

Answer:

distance = 324/8 km /hr

speed = 40/36 hr

time= speed×distance

time= 40/36 × 324/8

=45km.