Advertisements
Advertisements
प्रश्न
Explain the concept of direct variation.
Advertisements
उत्तर
\[\text{ When two variables are connected to each other in such a way that if we increase the value of one variable, the value of other variable also increases } \]
\[\text{ and vice - versa . Similarly, if we decrease the value of one variable, the value of other variable also decreases and vice - versa .} \]
\[\text{ Therefore, if the ratio between two variables remains constant, it is said to be in direct variation } .\]
APPEARS IN
संबंधित प्रश्न
Suneeta types 1080 words in one hour. What is her GWAM (gross words a minute rate)?
If the thickness of a pile of 12 cardboards is 35 mm, find the thickness of a pile of 294 cardboards.
The cost of 12 quintals of soyabean is 36,000 rupees. How much will 8 quintals cost?
A group of 21 students paid ₹ 840 as the entry fee for a magic show. How many students entered the magic show if the total amount paid was ₹ 1680?
Both u and v vary directly with each other. When u is 10, v is 15, which of the following is not a possible pair of corresponding values of u and v?
In which of the following case, do the quantities vary directly with each other?
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The quantity of rice and its cost.
It is given that l varies directly as m. Find m when l is 8.
From the following table, determine if x and y are in direct proportion or not.
| x | 1 | 4 | 9 | 20 |
| y | 1.5 | 6 | 13.5 | 30 |
If 25 metres of cloth costs Rs 337.50, then what will be the cost of 40 metres of the same type of cloth?
