Question

Jagan went to another town covering 240 km by car moving at 60 kmph. Then he covered 400km by train moving at 100 kmph and then rest 200 km he covered by a bus moving at 50 kmph. The average speed during the whole journey was ?
A) 36 kmph
B) 35 kmph
C) 72 kmph
D) 70 kmph

Answer 1

$\huge{Hey Mate!!!}$

☆☞ Here is ur answer ☜☆

✔✔ By car 240 km at 60 kmph
Time taken = 240/60 = 4 hr.

✔✔ By train 240 km at 60 kmph
Time taken = 400/100 = 4 hr.

✔✔ By bus 240 km at 60 kmph
Time taken = 200/50 = 4 hr.

✔✔ So total time = 4 + 4 + 4 = 12 hr. 
and total speed = 240+400+200 = 840 km

✔✔ Average speed of the whole journey = 840/12 = 70 kmph.



HOPE IT HELPS!

Answer 2

Given;- Jagan Travelled 240km by car moving at 60km/h

Time taken = 240/60 = 4 hours

By train 240 km at 60 kmph

Time taken = 400/100 = 4 hours

By bus 240 km at 60 km/h
Time taken = 200/50 = 4 hours

So total time = 12 hours


&

total speed = 240+400+200 = 840 km


Average speed of the whole journey

= 840/12 = 70 km/h.

$thanks \: me \: later$

❤️❤️