Advertisements
Advertisements
प्रश्न
30 persons can reap a field in 17 days. How many more persons should be engaged to reap the same field in 10 days?
Advertisements
उत्तर
∵ 30 persons can reap a field in 17 days.
1 person can reap the same field in 30 × 17 i.e. 510 days.
In 10 days, the number of persons required = `510/10` = 51 persons.
APPEARS IN
संबंधित प्रश्न
A mixture of paint is prepared by mixing 1 part of red pigments with 8 parts of base. In the following table, find the parts of the base that need to be added.
| Parts of red pigment | 1 | 4 | 7 | 12 | 20 |
| parts of base | 8 | .... | .... | .... | .... |
A machine in a soft drink factory fills 840 bottles in six hours. How many bottles will it fill in five hours?
If the thickness of a pile of 12 cardboards is 35 mm, find the thickness of a pile of 294 cardboards.
A truck requires 108 liters of diesel for covering a distance of 594 km. How much diesel will be required to cover a distance of 1650 km?
Length of a side of a square and its area vary directly with each other.
When two quantities are related in such a manner that, if one increases, the other also increases, then they always vary directly.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The quantity of rice and its cost.
Ms. Anita has to drive from Jhareda to Ganwari. She measures a distance of 3.5 cm between these villages on the map. What is the actual distance between the villages if the map scale is 1 cm = 10 km?
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.
The following table shows the distance travelled by one of the new eco-friendly energy-efficient cars travelled on gas.
| Litres of gas | 1 | 0.5 | 2 | 2.5 | 3 | 5 |
| Distance (km) | 15 | 7.5 | 30 | 37.5 | 45 | 75 |
Which type of properties are indicated by the table? How much distance will be covered by the car in 8 litres of gas?
