Advertisements
Advertisements
प्रश्न
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
Number of students in a hostel and consumption of food.
Advertisements
उत्तर
The number of students in a hostel and consumption of food are directly proportional to each other.
E.g. Let 200 students in a hostel can consume 100 kg of rice in a month.
Then, 400 students in a hostel can consume 200 kg of rice in a month.
APPEARS IN
संबंधित प्रश्न
Explain the concept of direct variation.
6 men can complete the electric fitting in a building in 7 days. How many days will it take if 21 men do the job?
Neha types 75 pages in 14 hours. How many pages will she type in 20 hours?
If two quantities x and y vary directly with each other, then ______ of their corresponding values remains constant.
An auto rickshaw takes 3 hours to cover a distance of 36 km. If its speed is increased by 4 km/h, the time taken by it to cover the same distance is ______.
Two quantities x and y are said to vary directly with each other if for some rational number k, xy = k.
Ravi starts for his school at 8:20 a.m. on his bicycle. If he travels at a speed of 10 km/h, then he reaches his school late by 8 minutes but on travelling at 16 km/h he reaches the school 10 minutes early. At what time does the school start?
A water tank casts a shadow 21 m long. A tree of height 9.5 m casts a shadow 8 m long at the same time. The lengths of the shadows are directly proportional to their heights. Find the height of the tank.

A recipe for a particular type of muffins requires 1 cup of milk and 1.5 cups of chocolates. Riya has 7.5 cups of chocolates. If she is using the recipe as a guide, how many cups of milk will she need to prepare muffins?

