Advertisements
Advertisements
प्रश्न
The second class railway fare for 240 km of Journey is Rs 15.00. What would be the fare for a journey of 139.2 km?
Advertisements
उत्तर
Let Rs x be the fare for a journey of 139.2 km.
| Distance (in km) | 240 | 139.2 |
| Fare (in Rs.) | 15 | x |
\[\text{ Since the distance travelled and the fare are in direct variation, we have: } \]
\[\frac{240}{139 . 2} = \frac{15}{x}\]
\[ \Rightarrow 240 \times x = 15 \times 139 . 2\]
\[ \Rightarrow x = \frac{15 \times 139 . 2}{240}\]
\[ = \frac{2088}{240}\]
\[ = 8 . 7\]
\[\text{ Thus, the fare for a journey of 139 . 2 km will be Rs } 8 . 70 .\]
APPEARS IN
संबंधित प्रश्न
Rashmi has a road map with a scale of 1 cm representing 18 km. She drives on a road for 72 km. What would be her distance covered in the map?
Fill in the blank in of the following so as to make the statement true:
If u = 3 v, then u and v vary .... with each other.
Complite the following table given that x varies directly as y .
| x | 3 | 5 | 7 | 9 |
| y | ... | 20 | 28 | ... |
The cost of 97 metre of cloth is Rs 242.50. What length of this can be purchased for Rs 302.50?
Working 8 hours a day, Ashu can copy a book in 18 days. How many hours a day should he work so as to finish the work in 12 days?
Assuming land to be uniformly fertile, the area of land and the yield on it vary ______
In which of the following case, do the quantities vary directly with each other?
Both x and y are in direct proportion, then `1/x` and `1/y` are ______.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Simple interest on a given sum and the rate of interest.
Here is a keyboard of a harmonium: What is the ratio of black keys to all keys on the given keyboard.
