Advertisements
Advertisements
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?
Advertisements
उत्तर
Let the distance represented on the map be x cm.
The given information, in the form of a table, is as follows:
| Distance covered on road in (in km) | 18 | 72 |
| Distance represented on map (in cm) | 1 | x |
The distances covered on the road and represented on the map are directly proportional to each other. Therefore, we obtain
`18/1 = 72/x`
=> `x = 72/18`
=> x = 4
Hence, the distance represented on the map is 4 cm.
APPEARS IN
संबंधित प्रश्न
A photograph of a bacteria enlarged 50,000 times attains a length of 5 cm as shown in the diagram. What is the actual length of the bacteria? If the photograph is enlarged 20,000 times only, what would be its enlarged length?
A worker is paid Rs 210 for 6 days work. If his total income of the month is Rs 875, for how many days did he work?
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?
If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh 2.5 kilograms?
If 7 m cloth costs ₹ 294, then the cost of 5 m of cloth is ________
Devangi travels 50 m distance in 75 steps, then the distance travelled in 375 steps is ______ km.
From the following table, determine if x and y are in direct proportion or not.
| x | 1 | 4 | 9 | 20 |
| y | 1.5 | 6 | 13.5 | 30 |
If 25 metres of cloth costs Rs 337.50, then what will be the cost of 40 metres of the same type of cloth?
Campus and Welfare Committee of school is planning to develop a blue shade for painting the entire school building. For this purpose various shades are tried by mixing containers of blue paint and white paint. In the following mixtures, decide which is a lighter shade of blue and also find the lightest blue shade among all of them.
| Mixture E | Mixture F |
 |
 |
If one container has one litre paint and the building requires 105 litres for painting, how many container of each type is required to paint the building by darkest blue shade?
Here is a keyboard of a harmonium: This pattern of keys is repeated on larger keyboard. How many black keys would you expect to find on a keyboard with 14 such patterns.
