**CA Foundation, Proportion, Exercise 1B Video Solutions in Hindi**

**Questions List**

The fourth proportional to 4, 6, 8 is...?

The third proportional to 12, 18 is...?

The mean proportional between 25, 81 is...?

The number which has the same ratio to 26 that 6 has to 13 is...?

The fourth proportional to 2a, a^2, c is...?

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

The mean proportional between 12x^2 and 27y^2 is...?

**Questions List**

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

If a/3 = b/4 = c/7, then a + b + c/c is...?

If p/q = r/s = 2.5/1.5, the value of ps : qr is...?

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

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

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

**Questions List**

If x/2 = y/3 = z/7, then the value of (2x – 5y + 4z)/2y is...?

If x : y = 2 : 3, y : z = 4 : 3 then x : y : z is...?

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

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...?

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

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

If p/q = r/s = p – r/q – s, the process is called...?

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

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

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

4, *, 9, 13½ are in proportion. Then * is...?

The mean proportional between 1.4 gms and 5.6 gms is...?

**Questions List**

If a/4 = b/5 = c/9 then (a + b + c)/c is...?

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/4 = b/5 then...?

If a : b = 4 : 1 then sqrt(a/b) + sqrt(b/a) is...?

If x/(b + c - a) = y/(c + a - b) = z/(a + b - c) then...?