Advertisements
Advertisements
प्रश्न
Find the values of x and y if a and b are in inverse proportion:
- 12 x 8
- 30 5 y
उत्तर
In an inverse proportion,
When we multiply the first quantity by any constant k, then the another quantity is divided by the same constant k.
Given,
| a | 12 | x | 8 |
| b | 30 | 5 | y |
Here, we see that in part (b), when we divide 30 by 6, we will get 5.
So, in part (a), we will get the value of x.
i.e. x = 12 × 6 = 72
Similarly, in part (a), when we divide x i.e. 72 by 9, we will get 8.
So, in part (b), we will get the value of y.
i.e. y = 5 × 9 = 45
APPEARS IN
संबंधित प्रश्न
Which of the following are in inverse proportion?
The number of workers on a job and the time to complete the job.
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?
In which of the following table x and y vary inversely:
| x | 4 | 3 | 6 | 1 |
| y | 9 | 12 | 8 | 36 |
It x and y vary inversely, fill in the following blank:
| x | 9 | ... | 81 | 243 |
| y | 27 | 9 | ... | 1 |
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
If 12 pumps can empty a reservoir in 20 hours, then time required by 45 such pumps to empty the same reservoir is ______ hours.
In case of inverse proportion, `a_2/- = b_2/-`
Length of a side of an equilateral triangle and its perimeter vary inversely with each other.
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 deposit of Rs 2,000 earns an interest of Rs 500 in 3 years, how much interest would a deposit of Rs 36,000 earn in 3 years with the same rate of simple interest?
