Question

The second class railway fare for 240 km of journey is ₹ 15.00 .what would be the fare for a journey of 139.2 km? assume that the fare varies directly as the length of the journey .​

Answer 1

Answer:

The cost of fare for 139.2km is 8.7 km

Step-by-step explanation:

cost of fare for 240km=₹15

cost of fare for 139.2km= ₹x

240:139.2::15:x

Product of means =Product of extremes

240*x=139.2*15

x=2088/240

x=8.7

Answer 2

Let Rs.x be the fare for a journey of 139.2km.

Distance ( in km ) 240 139.2

Fare ( in Rs. ) 15 x

Since, the distance traveled and the fare are in direct variation, we have:

$⇒ \frac{240}{139.2}=\frac{15}{x}$

$⇒ 240×x=15×139.2$

$⇒x= \frac{15×139.2}{240}$

$∴ x=8.7$

∴ The fare for a journey of 139.2km will be Rs.8.70.