Advertisements
Advertisements
प्रश्न
x varies inversely as twice of y. Given that when y = 6, the value of x is 4. Find the value of x when y = 8
Advertisements
उत्तर
Given x varies inversely as twice of y.
| x | 4 | x |
| y | 6 | 8 |
x1y1 = x2y2
4 × 6 = x × 8
x = `(4 xx 6)/8`
x = 3
When y = 8
x = 3
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°?
A batch of bottles was packed in 25 boxes with 12 bottles in each box. If the same batch is packed using 20 bottles in each box, how many boxes would be filled?
A school has 8 periods a day each of 45 minutes duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?
Find the constant of variation from the table given below:
| x | 3 | 5 | 7 | 9 |
| y | 12 | 20 | 28 | 36 |
Set up a table and solve the following problems. Use unitary method to verify the answer.
It x and y vary inversely, fill in the following blank:
| x | 12 | 16 | ... | 8 | ... |
| y | ... | 6 | 4 | ... | 0.25 |
Which of the following quantities vary inversely as other?
Journey (x km) undertaken by a car and the petrol (y litres) consumed by it.
12 cows can graze a field for 10 days. 20 cows can graze the same field for _______ days
4 typists are employed to complete a work in 12 days. If two more typists are added, they will finish the same work in _________ days
When two quantities x and y are in ______ proportion or vary ______ they are written as `x oo 1/y`.
If d varies directly as t2, then we can write dt2 = k, where k is some constant.
