Advertisements
Advertisements
Question
Which of the following are in inverse proportion?
The population of a country and the area of land per person.
Solution
If the population of a country increases, then the area of land per person will decrease. But if the population of a country decreases, then the area of land per person will increase.
∴ The given statement is in inverse proportion.
APPEARS IN
RELATED QUESTIONS
A farmer has enough food to feed 20 animals in his cattle for 6 days. How long would the food last if there were 10 more animals in his cattle?
A factory required 42 machines to produce a given number of articles in 63 days. How many machines would be required to produce the same number of articles in 54 days?
It is known that for a given mass of gas, the volume v varies inversely as the pressure p. Fill in the missing entries in the following table:
| v (in cm3) | ... | 48 | 60 | ... | 100 | ... | 200 |
| p (in atmospheres) | 2 | ... | 3/2 | 1 | ... | 1/2 | ... |
If 36 men can do a piece of work in 25 days, in how many days will 15 men do it?
If x and y vary inversely as other and x = 30, find y when constant of variation = 900.
The stock of grain in a government warehouse lasts 30 days for 4000 people. How many days will it last for 6000 people?
10 farmers can plough a field in 21 days. Find the number of days reduced if 14 farmers ploughed the same field?
If xy = 10, then x and y vary ______ 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.
The variable x is inversely proportional to y. If x increases by p%, then by what percent will y decrease?
