Advertisements
Advertisements
प्रश्न
In which of the following table x and y vary inversely:
| x | 9 | 24 | 15 | 3 |
| y | 8 | 3 | 4 | 25 |
Advertisements
उत्तर
\[ \text{ If x and y vary inversely, the product xy should be constant } . \]
\[\text{ Here, product is different for all cases } . \]
\[\text{ Thus, in this case, x and y do not vary inversely .} \]
APPEARS IN
संबंधित प्रश्न
Which of the following are in inverse proportion?
The time taken for a fixed journey and the speed of the vehicle.
If x and y vary inversely as other and x = 3 when y = 8, find y when x = 4 .
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?
When the speed is kept fixed, time and distance vary inversely with each other.
Length of a side of an equilateral triangle and its perimeter vary inversely with each other.
If a tree 24 m high casts a shadow of 15 m, then the height of a pole that casts a shadow of 6 m under similar conditions is 9.6 m.
If x varies inversely as y and x = 20 when y = 600, find y when x = 400.
Find the values of x and y if a and b are in inverse proportion:
- 12 x 8
- 30 5 y
At a particular time, the length of the shadow of Qutub Minar whose height is 72 m is 80 m. What will be the height of an electric pole, the length of whose shadow at the same time is 1000 cm?
