Advertisements
Advertisements
प्रश्न
If x varies inversely as y, then
| x | – | 60 |
| y | 2 | 10 |
Advertisements
उत्तर
If x varies inversely as y, then
| x | 300 | 60 |
| y | 2 | 10 |
Explanation:
If x varies inversely as y, then
xy = k (constant) ...(i)
If x = 60 and y = 10
∴ xy = 60 × 10 = 600
⇒ k = 600
When y = 2, then from equation (i), we have
x × 2 = k
⇒ 2x = 600
⇒ x = 300
APPEARS IN
संबंधित प्रश्न
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.
In a hostel of 50 girls, there are food provisions for 40 days. If 30 more girls join the hostel, how long will these provisions last?
A person has money to buy 25 cycles worth Rs 500 each. How many cycles he will be able to buy if each cycle is costing Rs 125 more?
16 taps can fill a petrol tank in 18 minutes. The time taken for 9 taps to fill the same tank will be _________ minutes
Neelaveni goes by bicycle to her school every day. Her average speed is 12 km/hr and she reaches school in 20 minutes. What is the increase in speed, If she reaches the school in 15 minutes?
Which of the following vary inversely with each other?
Both x and y are said to vary ______ with each other if for some positive number k, xy = k.
In case of inverse proportion, `a_2/- = b_2/-`
If one angle of a triangle is kept fixed then the measure of the remaining two angles vary inversely with each other.
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 |
