Advertisements
Advertisements
प्रश्न
The stock of grain in a government warehouse lasts 30 days for 4000 people. How many days will it last for 6000 people?
उत्तर
Let us suppose the stock of grain in a government warehouse lasts x days for 6000 people.
As the number of people increases, the number of days decreases.
So, the number of days and number of people are in inverse proportion.
∴ 30 × 4000 = 6000 × x
⇒ x = `120000/6000`
⇒ x = 20 days
Hence, the stock of grain in a government warehouse lasts 20 days for 6000 people.
संबंधित प्रश्न
Which of the following are in inverse proportion?
The time taken for a fixed journey and the speed of the vehicle.
1200 men can finish a stock of food in 35 days. How many more men should join them so that the same stock may last for 25 days?
Three spraying machines working together can finish painting a house in 60 minutes. How long will it take for 5 machines of the same capacity to do the same job?
A person has money to buy 25 cycles worth Rs 500 each. How many cycles he will be able to buy if each cycle is costing Rs 125 more?
Five workers take 12 days to weed a field. How many days would 6 workers take? How many would 15 take?
6 pumps are required to fill a water sump in 1 hr 30 minutes. What will be the time taken to fill the sump if one pump is switched off?
It takes 60 days for 10 machines to dig a hole. Assuming that all machines work at the same speed, how long will it take 30 machines to dig the same hole?
Six men can complete a work in 12 days. Two days later, 6 more men joined them. How many days will they take to complete the remaining work?
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.
