Advertisements
Advertisements
प्रश्न
Find `x/y`; when x2 + 6y2 = 5xy.
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
Two numbers are in the ratio 5 : 7 and the difference of their squares is 600. Find the numbers.
If `"x"/("b + c - a") =" y" /("c + a - b") = "z"/("a + b - c")` , then prove that each ratio is equal to the ratio of `("x + y+z")/("a + b + c")`
The monthly salary of a person is Rs. 12,000 and his monthly expenditure is Rs 8,500. Find the ratio of his:
(i) salary to expenditure
(ii) expenditure to savings
(ii) savings to salary
The work done by (x – 3) men in (2x + 1) days and the work done by (2x + 1) men in (x + 4) days are in the ratio of 3: 10. Find the value of x.
Express the given ratio in its simplest form: 1.5 : 2.5
Which of the following numbers are in continued proportion:
6, 12 and 24
Find the value of x of the following such that the given numbers are in proportion.
45, 135, 90 and x
If A: B = `(1)/(4) : (1)/(5)` and B : C = `(1)/(7) : (1)/(6)`, find A : B : C.
Divide Rs 1400 among A. B and C in the ratio 2 : 3 : 5.
Choose the correct answer from the given options :
When the number 210 is increased in the ratio 5 : 7, the new number is