Advertisements
Advertisements
प्रश्न
Find `x/y`; when x2 + 6y2 = 5xy.
Advertisements
उत्तर
x2 + 6y2 = 5xy
Dividing both sides by y2, we get
`x^2/y^2 + (6y^2)/y^2 = (5xy)/(y^2)`
`(x/y)^2 + 6 = 5(x/y)`
`(x/y)^2 - 5(x/y) + 6 = 0`
Let `x/y = a`
∴ a2 – 5a + 6 = 0
`=>` (a – 2)(a – 3) = 0
`=>` a = 2, 3
Hence, `x/y` = 2, 3
APPEARS IN
संबंधित प्रश्न
There are 36 members in a student council in a school and the ratio of the number of boys to the number of girls is 3 : 1. How any more girls should be added to the council so that the ratio of the number of boys to the number of girls may be 9 : 5?
Express the following ratios in its simplest form :
`3 1/2 : 7`
Ten gram of an alloy of metals A and B contains 7.5 gm of metal A and the rest is metal B. Find the ratio between:
- the weights of metals A and B in the alloy.
- the weight of metal B and the weight of the alloy.
Reema has 24 notebooks and 18 books. Find the ratio of notebooks to books.
Express the following ratio in the simplest form:
36 : 90
The length and breadth of a window are in 1m and 70 cm respectively. The ratio of the length to the breadth is _______________
20 g : 100 g = 1 metre : 500 cm
A ratio can be equal to 1.

In the following figure, the comparative areas of the continents are given: What is the ratio of the areas of
- Africa to Europe
- Australia to Asia
- Antarctica to Combined area of North America and South America.
In an election, the votes cast for two of the candidates were in the ratio 5 : 7. If the successful candidate received 20734 votes, how many votes did his opponent receive?
