Advertisements
Advertisements
प्रश्न
If x varies inversely as y and x = 4 when y = 6, then when x = 3 the value of y is ______.
Advertisements
उत्तर
If x varies inversely as y and x = 4 when y = 6, then when x = 3 the value of y is 8.
Explanation:
x varies inversely as y.
In inverse proportion, xy = k ...(Constant)
If x = 4 and y = 6, then k = 4 × 6 = 24
Now, when x = 3, then `y = k/x`
⇒ `y = 24/3 = 8`
APPEARS IN
संबंधित प्रश्न
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
Which of the following quantities vary inversely as other?
Journey (x km) undertaken by a car and the petrol (y litres) consumed by it.
If x and y vary inversely as other and x = 3 when y = 8, find y when x = 4 .
It takes 120 minutes to weed a garden with 6 gardeners. If the same work is to be done in 30 minutes, how many more gardeners are needed?
12 cows can graze a field for 10 days. 20 cows can graze the same field for _______ days
If x varies inversely as y, then
| x | – | 60 |
| y | 2 | 10 |
When the speed is kept fixed, time and distance vary inversely 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.
Sobi types 108 words in 6 minutes. How many words would she type in half an hour?
In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?
