Advertisements
Advertisements
प्रश्न
If (3x – 9) : (5x + 4) is the triplicate ratio of 3 : 4, find the value of x.
Advertisements
उत्तर
We have,
`(3x - 9)/(5x + 4) = 3^3/4^3`
`=> (3x - 9)/(5x + 4) = 27/64`
`=> (3(x - 3))/(5x + 4) = 27/64`
`=>(x - 3)/(5x + 4)= 9/64`
`=>` 64x – 192 = 45x + 36
`=>` 19x = 228
`=>` x = 12
APPEARS IN
संबंधित प्रश्न
Find the ratio of the speed of a cycle 15 km per hour to the speed of scooter 30 km per hour.
If the ratio between 8 and 11 is the same as the ratio of 2x – y to x + 2y, find the value of `(7x)/(9y)`.
Express the following ratios in its simplest form :
2.5 : 5
If (x - 9) : (3x + 6) is the duplicate ratio of 4 : 9, find the value of x.
Which of the following numbers are in continued proportion:
3, 6 and 15
Find the triplicate ratio of `(1)/(2) : (1)/(3)`
If a bus covers 195 km in 3 hours and a train covers 300 km in 4 hours, then the ratio of their speeds is
Ratio of 5 km 400 m to 6 km = _______________
On a shelf, books with green cover and that with brown cover are in the ratio 2 : 3. If there are 18 books with green cover, then the number of books with brown cover is ______.
