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gaurav

· started a discussion

· 1 Months ago

a (Question: 285174.0 )

how u write 1 equation in solution?

Question:

Three cars leave A for B in equal time intervals. They reach B simultaneously and then leave for point C which is 240 km away from B. The first car arrives at C an hour after the second car. The third car, having reached C, immediately turns back and heads towards B. The first and third car meet a point that is 80 km away from C. What is the difference between the speed of the first and the third car?

Options:
A)

60 kmph

B)

80 kmph

C)

20 kmph

D)

40 kmph

Solution:

Ans: (a)

  

gaurav

· commented

· 1 Months ago

ok gottt it ....thru 3 equal time intervals ....!!!
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