Advertisements
Advertisements
प्रश्न
In a model of a ship, the mast is 9 cm high, while the mast of the actual ship is 12 m high. If the length of the ship is 28 m, how long is the model ship?
Advertisements
उत्तर
Let x m be the length of the model ship when the height of the mast is 9 cm.
Now, according to question,
| Model ship | Actual ship | |
| Height of the mast (in m) | `9/100` | 12 |
| Length of the ship (in m) | x | 28 |
∴ `(9/100)/x = 12/28`
⇒ `(9xx28)/(12xx100)` = x
⇒ 0.21 = x
Thus, the length of the model ship = 0.21m.
APPEARS IN
संबंधित प्रश्न
Suppose 2 kg of sugar contains 9 × 106 crystals.
How many sugar crystals are there in
- 5 kg of sugar?
- 1.2 kg of sugar?
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?
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?
A, B and C can reap a field in \[15\frac{3}{4}\] days; B, C and D in 14 days; C, D and A in 18 days; D, A and B in 21 days. In what time can A, B, C and D together reap it?
Aasheesh can paint his doll in 20 minutes and his sister Chinki can do so in 25 minutes. They paint the doll together for five minutes. At this juncture they have a quarrel and Chinki withdraws from painting. In how many minutes will Aasheesh finish the painting of the remaining doll?
The shadow of a pole with height of 8 m is 6 m. If the shadow of another pole measured at the same time is 30 m, find the height of the pole?
A postman can sort out 738 letters in 6 hours. How many letters can be sorted in 9 hours?
If x = 5y, then x and y vary ______ with each other.
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 C | Mixture D |
 |
 |
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?
Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10 km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school start?
