Advertisements
Advertisements
प्रश्न
If `(m + n)/(m + 3n) = 2/3`, find : `(2n^2)/(3m^2 + mn)`.
Advertisements
उत्तर
Given: `(m + n)/(m + 3n) = 2/3`
`\implies` 3m + 3n = 2m + 6n
`\implies` 3m – 2m = 6n – 3n
`\implies` m = 3n
Now `(2n^2)/(3m^2 + mn)`
= `(2n^2)/(3(3n)^2 + 3n xx n)`
= `(2n^2)/(27n^2 + 3n^2)`
= `(2n^2)/(30n^2)`
= `1/15`
संबंधित प्रश्न
Find the sub-triplicate ratio of the following :
512: 216
What quantity must be subtracted from each term of the ratio 39 : 89 to make it equal to 2 : 5 ?
If p + r = 2q and `(1)/q + (1)/s = (2)/r`, then prove that p : q = r : s.
Express the given ratio in its simplest form: 40 kg : 1 quintal
In the example below, find the ratio of the first number to the second.
121, 99
If (4x2 + xy) : (3xy – y2) = 12 : 5, find (x + 2y) : (2x + y).
A rail journey of 75 km costs Rs 215. How much will a journey of 120 km cost?
Choose the correct answer from the given options :
When the number 210 is increased in the ratio 5 : 7, the new number is
Find the simplified form of the following ratio.
12 : 27
Find the ratio of the following:
55 paise to ₹ 1
