If a person walks at 14 *km/hr* instead of 10 *km/hr*, he would have walked 20 *km* more. The actual distance travelled by him is :

- A.
**52***km* - B.
**62***km* - C.
**55***km* - D.
**50***km***Ans**: D.**Sol.**

Let the actual distance travelled be*x km.*Then,*x*/10 = (*x*+20)/14

⇔ 14*x*= 10*x*+ 200

⇔ 4*x*= 200

⇔*x*= 50*km.*

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