Question

15. A train travels a distance of 15 km with a speed of 30 km h^-1 and remaining distance
of 15 km with a speed of 45 km h-?. Find its average speed in km h^-1​

Answer 1

Explanation:

given

d1=15 km,v1=30km/hr

d2=75 km,v2=50km/hr

d3 10km,v3= 20km/hr

we know that

average speed =

total distance covered/total time taken

total distance covered =D=15+75+10=100km

total time taken =T=(15/30)+(75+50)+10/20)=2.5 hours so average speed =/2.5=40km/hr

this is answer

please take it as brainlist answer please

Answer 2

Answer:

mera kehne ka mtlb accha nhi tha jo aapne mujhe thanks diya

kitni ghatiya ho ye mtlb tha mera