Question

A car completes a journey of 315 km in 4 hours 45 minutes. The first one-third of the journey is completed

at 16⅔m/sec. Find the speed of the rest of the journey.

Want it urgent pls tell
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Answer 1

Answer:

1+2=11ℎt1+t2=11hrs

1=30/ℎxt1=30km/hr

2=25/ℎxt2=25km/hr

Which gives,

1=30t1=x30

2=25t2=x25

Therefore,

30+25=11ℎx30+x25=11hr

By cross multiplying,

30+25750=11ℎ30x+25x750=11hr

implies,

55=11∗75055x=11∗750

5=7505x=750

=150.x=150.

So the total distance is 2 times 150, ie 300 km.

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if by chance you meant half time, then answer is too obvious, 165 + 137.5 = 302.5

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Step-by-step explanation: