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.
APPEARS IN
संबंधित प्रश्न
A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?
In which of the following table x and y vary inversely:
| x | 4 | 3 | 12 | 1 |
| y | 6 | 8 | 2 | 24 |
If x and y vary inversely as other and y = 35, find x when constant of variation = 7.
Forty students stay in a hostel. They had food stock for 30 days. If the students are doubled then for how many days the stock will last?
Meena had enough money to send 8 parcels each weighing 500 grams through a courier service. What would be the weight of each parcel, if she has to send 40 parcels for the same money?
A toy company requires 36 machines to produce car toys in 54 days. How many machines would be required to produce the same number of car toys in 81 days?
If x varies inversely as y, then
| x | – | 60 |
| y | 2 | 10 |
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.
Increase in cost and number of shirts that can be purchased if the budget remains the same.
If a deposit of Rs 2,000 earns an interest of Rs 500 in 3 years, how much interest would a deposit of Rs 36,000 earn in 3 years with the same rate of simple interest?
