Advertisements
Advertisements
प्रश्न
In which of the following table x and y vary inversely:
| x | 4 | 3 | 6 | 1 |
| y | 9 | 12 | 8 | 36 |
Advertisements
उत्तर
\[ \text{ If x and y vary inversely, the product xy should be constant } . \]
\[\text{ Here, in one case, product = 6 } \times 8 = 48 \text{ and in the rest, product } = 36\]
\[\text{ Thus, in this case, x and y do not vary inversely .} \]
APPEARS IN
संबंधित प्रश्न
Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him by completing the following table:
| Number of spokes | 4 | 6 | 8 | 10 | 12 |
| Angle between a pair of consecutive spokes |
90° | 60° | ... | ... | ... |
- Are the number of spokes and the angles formed between the pairs of consecutive spokes in inverse proportion?
- Calculate the angle between a pair of consecutive spokes on a wheel with 15 spokes.
- How many spokes would be needed if the angle between a pair of consecutive spokes is 40°?
Two persons could fit new windows in house in 3 days.
One of the persons fell ill before the work started. How long would the job take now?
It x and y vary inversely, fill in the following blank:
| x | 16 | 32 | 8 | 128 |
| y | 4 | ... | ... | 0.25 |
If x and y vary inversely as other and x = 5 when y = 15, find x when y = 12 .
12 cows can graze a field for 10 days. 20 cows can graze the same field for _______ days
When two quantities x and y are in ______ proportion or vary ______ they are written as `x oo 1/y`.
When the speed is kept fixed, time and distance vary inversely with each other.
If x varies inversely as y and when x = 6, y = 8, then for x = 8 the value of y is 10.
Write whether the following statement vary directly, vary inversely with each other, or neither of the two.
The number of people working and the time to complete a given work.
If a and b vary inversely to other, then find the values of p, q, r ; x, y, z and l, m, n.
| a | 6 | 8 | q | 25 |
| b | 18 | p | 39 | r |
