Advertisements
Advertisements
प्रश्न
Two persons could fit new windows in house in 3 days.
How many persons would be needed to fit the windows in one day?
Advertisements
उत्तर
Let the number of persons required to fit all the windows in one day be y. The following table is formed.
| Number of persons | 2 | y |
| Number of days | 3 | 1 |
The lesser the number of days, the more will be the number of persons required to fit all the windows. Hence, this is a case of inverse proportion. Therefore,
2 × 3 = y × 1
y = 6
Hence, 6 persons are required to fit all the windows in one day.
संबंधित प्रश्न
Which of the following are in inverse proportion?
Area of cultivated land and the crop harvested
Which of the following are in inverse proportion?
The population of a country and the area of land per person.
A contractor estimates that 3 persons could rewire Jasminder’s house in 4 days. If, he uses 4 persons instead of three, how long should they take to complete the job?
A work force of 50 men with a contractor can finish a piece of work in 5 months. In how many months the same work can be completed by 125 men?
1200 soldiers in a fort had enough food for 28 days. After 4 days, some soldiers were transferred to another fort and thus the food lasted now for 32 more days. How many soldiers left the fort?
In case of inverse proportion, `a_2/- = b_2/-`
If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6 m.
If x and y are in inverse proportion, then (x + 1) and (y + 1) are also in inverse proportion.
If one angle of a triangle is kept fixed then the measure of the remaining two angles vary inversely with each other.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The height of a tree and the number of years.
