Advertisements
Advertisements
Question
Find the value of x, if: (3x – 7) : (4x + 3) is the sub-triplicate ratio of 8 : 27.
Advertisements
Solution
(3x – 7) : (4x + 3) is the sub-triplicate ratio of 8 : 27
Sub-triplicate ratio of 8 : 27 = 2 : 3
`(3x - 7)/(4x + 3) = 2/3`
9x – 21 = 8x + 6
9x – 8x = 6 + 21
x = 27
APPEARS IN
RELATED QUESTIONS
The monthly pocket money of Ravi and Sanjeev are in the ratio 5 : 7. Their expenditures are in the ratio 3 : 5. If each saves Rs. 80 every month, find their monthly pocket money.
Find the compounded ratio of the following:
`sqrt 8 : 4 , 3 : sqrt 5` and `sqrt 20 : sqrt 27`
Find the reciprocal ratio of e following :
a3b2 : a2b3
If a,b,c are in continued proportion,
show that: `("a"^2 + "b"^2)/("b"("a" + "c")` = `("b"("a" + "c"))/("b"^2 + "c"^2)`
If P : Q = `1/2 : 1/3` and Q : R = `1 1/2 : 1 1/3`, find P : R.
Which of the following numbers are in continued proportion:
6, 12 and 24
Out of 50 students in a class, 30 are boys. Find the ratio of number of boys to the number of girls
Out of 50 students in a class, 30 are boys. Find the ratio of number of girls to the total number of students
The ratio of 1 l to 50 ml is ______________
A ratio will always be more than 1.
