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⟩ A car travells certain distance taking 7 hrs in forward journey, during the return journey increased speed 12km/hr takes the time 5 hrs. What is the distance travelled.a) 210 KMsB) 30 KMsc) 20 KMsd) None Of these

Increased speed by 12Km/hr?

or Increased speed to 12Km/hr?

If first, none. If second, it takes 5 hours to return with 12Km/hr. So, 5 multiply 12 equals 60 Km. Since it is round trip, it is going to be 120 km.

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