A person takes 1 h more than his friend to reach a party. The distance travelled by the person is 20 km more than his friend. Also given that the speed of the person is 16 km / h, whereas that of his friend is 15 km / h, find the distance travelled by his friend to reach the party.

Question

A person takes 1 h more than his friend to reach a party. The distance travelled by the person is 20 km more than his friend. Also given that the speed of the person is 16 km / h, whereas that of his friend is 15 km / h, find the distance travelled by his friend to reach the party. (A) 60 km (B) 40 km (C) 80 km (D) 30 km

Tardigrade Admin · Accepted Answer

(i) Let the distance travelled by the person and his friend be d km and (d-20) km, respectively. (ii) Time difference =(d/16)-(d-20/15)=1, find d and then d-20.

Q. A person takes $1 h$ more than his friend to reach a party. The distance travelled by the person is $20 km$ more than his friend. Also given that the speed of the person is $16 km / h$ , whereas that of his friend is $15 km / h$ , find the distance travelled by his friend to reach the party.

$60 km$

$40 km$

$80 km$

$30 km$

(i) Let the distance travelled by the person and his friend be $d km$ and $(d - 20) km$ , respectively.
(ii) Time difference $= \frac{d}{16} - \frac{d - 20}{15} = 1$ , find $d$ and then $d - 20$ .

Q. A person takes 1h more than his friend to reach a party. The distance travelled by the person is 20km more than his friend. Also given that the speed of the person is 16km/h, whereas that of his friend is 15km/h, find the distance travelled by his friend to reach the party.

60km

40km

80km

30km