Question Bank

If x:y = 3:1, then (x^3 - y^3) : (x^3 + y^3) is:

A and B together have Rs 1210. If 4/15 of A's amount is equal to 2/5 of B's amount, how much amount does B have?

If 0.75:x :: 5:8, then x is equal to:

Two numbers are in the ratio 1:2. If 7 is added to both, their ratio changes to 3:5. The greatest number is:

What is the ratio of the area of a circle to the area of a square if the side of the square equals the diameter of the circle?

The ratio of the number of sides of two regular polygons is 1:2 and the ratio of their interior angles is 3:4. The number of sides are:

If x/y = 3/4, then find the value of (7x-4y)/(3x+y).

In a proportion, the product of means is equal to:

The ratio of the length and breadth of a rectangle is 5:3. If the length is 10 cm more than the breadth, find the area.

If the ratios a:b = 2:3, b:c = 4:5 and c:d = 6:7, find a:d.

Find the value of x if 4, x, and 9 are in continued proportion.

A sum of Rs 1300 is divided among A, B, C and D such that A/B = B/C = C/D = 2/3. What is A's share?

If x:y = 5:8 and y:z = 4:7, then find x:y:z.

If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?

The ratio of two numbers is 10:7 and their difference is 105. The sum of these numbers is:

The total number of students in a school is 2140. If the number of girls in the school is 1200, then what is the ratio of total number of boys to the total number of girls?

If x : 12 :: 3 : 4, then x is:

The ratio of the side of a square to its diagonal is:

If a:b = 5:9 and b:c = 4:7, find a:c.

Find the fourth proportional to 4, 9, 12.