Advertisements
Advertisements
प्रश्न
If (x + 3) : (4x + 1) is the duplicate ratio of 3 : 5, find the value of x.
Advertisements
उत्तर
If (x + 3) : (4x + 1) is the duplicate ratio of 3 : 5
Find the value of x.
We have,
`(x + 3)/(4x + 1) = 3^2/5^2`
`\implies (x + 3)/(4x + 1) = 9/25`
`\implies` 25x + 75 = 36x + 9
`\implies` 11x = 66
`\implies` x = 6
APPEARS IN
संबंधित प्रश्न
Find the ratio of 5 m to 10 km.
Find the ratio of 50 paise to Rs 5.
A school has 630 students. The ratio of the number of boys to the number of girls is 3 : 2. This ratio changes to 7 : 5 after the admission of 90 new students. Find the number of newly admitted boys.
Find the duplicate ratio of the following :
`3 sqrt (2"a") : 2 sqrt (3"a")`
In a mixture of 126 kg of milk and water, milk and water are in ratio 5 : 2. How much water must be added to the mixture to make this ratio 3 : 2?
Express the following ratios in its simplest form :
2.5 : 5
Ratio of the distance of the school from A’s home to the distance of the school from B’s home is 2 : 1.
(i) Who lives nearer to the school?
(ii) Complete the following table:
Find the triplicate ratio of `(1)/(2) : (1)/(3)`
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.
Two numbers are in the ratio 5 : 8. If 10 is subtracted from each number, the ratio becomes 4 : 7. The numbers are ______.
