Sagot :
Answer:
90 Average speed
Step-by-step explanation:
pa brainliest
Answer:
40km/h
Step-by-step explanation:
Average Speed = (2 × S1 × S2)/(S1 + S2)
= (2 × 30 × 60)/(30 + 60)
= 3600/90
= 40 km/hr
Answer:
90 Average speed
Step-by-step explanation:
pa brainliest
Answer:
40km/h
Step-by-step explanation:
Average Speed = (2 × S1 × S2)/(S1 + S2)
= (2 × 30 × 60)/(30 + 60)
= 3600/90
= 40 km/hr