Test: Ratio And Proportion, Indices, Logarithms - 4

If (5x-3y)/(5y-3x) =3/4 , the value of x:y is

The mean proportional between 12x² and 27y² is 

If x:y=z:w=2.5/1.5, the value of (x+z)/(y+w) is 0

The mean proportional between 25,81 is 

The fourth proportional to 4,6,8 is 

If A:B=3:2 and B:C=3:5, then A:B:C is

If a/3=b/4=c/7, then a+b+c/c is 

Division of Rs. 750 into 3 parts in the ratio 4:5:6 is 

If A = B/2 = C/5, then A:B:C is

The third proportional to 12,18 is 

In a library, the ratio of number of story books to that of non-story books was 4:3 and total number of story books was 1248. When some more story books were bought, the ratio became 5:3. Find the number of story books bought. 

If x/y=z/w, implies y/x=w/z, then the process is called 

 If u/v=w/p, then (u-v)/(u+v)=(w-p)/(w+p). The process is called

What is the fourth proportional to the numbers 2, 5, 8.​

If p/q=r/s=p-r/q-s, the process is called 

The sum of the ages of 3 persons is 150 years. 10 years ago their ages were in the ratio 7:8:9. Their present ages are 

Two numbers are in the ratio 3:4; if 6 be added to each terms of the ratio, then the new ratio will be 4:5, then the numbers are 

 If a/b=c/d, implies (a+b)/(a-b) = (c+d)/(c-d), the process is called

12, 16, *, 20 are in proportion. Then* is 

The numbers 14, 16, 35, 42 are not in proportion. The fourth term for which they will be in proportion is 

4x^-1/4 is expressed as

X^a-b x X^b-c x X^c-a is equal to 

The value of 2(256)^-1/8 is

Which is True?

The value of 4/(32)^1/5 is 

 If x^1/p = y ^1/q = z^1/r and xyz =1 , then the value of p+q+r is

 The value of (8/27)^1/3 is 

 {(3³)² x (4²)³ x (5³)²}/{(3²)³ x (4³)² x (5²)³} is

 2 ½ . 4 ¾ is equal to

The simplified value of 16x^-3y² x 8^-1x³y^-2 is 

 The value of 2 x (32)^1/5 is 

 The True option is

The value of y^a-b x y^b-cx y^c-a x y^-a-b is

 The value of 8^1/3 is 

On simplification, 1/(a+a^m-n + a^m-p) + 1/(1+a^n-m +a^n-p) + 1/(1+a^p-m +a^p-n) is equal to 

 [{(2)^1/2. (4)^3/4. (8)^5/6. (16)^7/8. (32)^9/10}⁴]^3/25 is

If four numbers 1/2, 1/3, 1/5, 1/x are proportional then x is