Advertisements
Advertisements
प्रश्न
If (3x-4) : (2x+5) is the duplicate ratio of 3 : 4 , find x.
Advertisements
उत्तर
`(3x-4)/(2x+5) = (3)^2/(4)^2`
⇒ `(3x-4)/(2x+5) = (3) = 9/16`
⇒ 48x - 64 - 18x + 45
⇒ 30 x - 109
⇒ x = `109/30`
x = `109/30`
APPEARS IN
संबंधित प्रश्न
Find the compound ratio of :
3 : 5 and 8 : 15
which of the following ratio is greater?
2 : 3 and 13 : 19
The hypotenuse of a right angled triangle is 3`sqrt(5)`. If the smaller side is tripled and the larger side is doubled, the new hypotenuse will be 15 cm. Find the length of each side.
₹120 is to be divided between Hari and Gopi in the ratio 5 : 3. How much does each get?
Find the reciprocal ratio of `(1)/(9) : 2`
Find the ratio of the price of a pencil to that of a ball pen if pencils cost Rs 96 per score and ball pens cost Rs 50.40 per dozen.
If `x/(b + c - a) = y/(c + a - b) = z/(a + b - c)` prove that each ratio’s equal to `(x + y + z)/(a + b + c)`.
Ratio of 5 km 400 m to 6 km = _______________
In a school, the ratio of the number of large classrooms to small classrooms is 3 : 4. If the number of small rooms is 20, then find the number of large rooms.
In the following figure, find the ratio of the area of the shaded portion to that of the whole figure:
