A car complete his journey in 12houres.he travels first half is speed 25km/h and second half is 20 km/h. find the total journey speed is :

Options
- 800/3 km
- 802/3km
- 803/3km
- 839/3km

CORRECT ANSWER : 800/3 km

Discussion Board
wrong solution

the question is asking speed and distance is calculated in answer.

Warisha 04-9-2023 10:49 PM

solution

t=t1+t2
12=d/2*25+d/2*20
12=d/2(25+20/500)
d=24*500/45
d=800/3km

Deji verma 01-28-2020 12:07 PM

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