Advertisements
Advertisements
प्रश्न
If a and b vary inversely to other, then find the values of p, q, r ; x, y, z and l, m, n.
| a | l | 9 | n | 6 |
| b | 5 | m | 25 | 10 |
उत्तर
If a and b vary inversely to other.
i.e. ab = k ...(Constant)
For table,
| a | l | 9 | n | 6 |
| b | 5 | m | 25 | 10 |
If a = 6 and b = 1
Then, a × b = 6 × 10 = 60
⇒ k = 60
When a = l and b = 5, then
ab = k
⇒ l × 5 = 60
⇒ p = `60/5` = 12
When a = 9 and b = m, then
ab = k
∴ 9 × m = 60
⇒ m = `60/9 = 20/3`
When a = n and b = 25, then
ab = k
⇒ n × 25 = 60
⇒ r = `60/25 = 12/5`
APPEARS IN
संबंधित प्रश्न
The stock of grain in a government warehouse lasts 30 days for 4000 people. How many days will it last for 6000 people?
If 40 workers can do a project work in 8 days, then _________ workers can do it in 4 days
A printer, prints a book of 300 pages at the rate of 30 pages per minute. Then, how long will it take to print the same book if the speed of the printer is 25 pages per minute?
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
10 farmers can plough a field in 21 days. Find the number of days reduced if 14 farmers ploughed the same field?
A flood relief camp has food stock by which 80 people can be benefited for 60 days. After 10 days 20 more people have joined the camp. Calculate the number of days of food shortage due to the addition of 20 more people?
Six men can complete a work in 12 days. Two days later, 6 more men joined them. How many days will they take to complete the remaining work?
When two quantities x and y are in ______ proportion or vary ______ they are written as `x oo 1/y`.
If a and b vary inversely to other, then find the values of p, q, r ; x, y, z and l, m, n.
| a | 2 | y | 6 | 10 |
| b | x | 12.5 | 15 | z |
The variable x is inversely proportional to y. If x increases by p%, then by what percent will y decrease?
