Quantitative Aptitude - Arithmetic Ability Questions

Karan remembers that his sister's birthday is not after 18th August. Karan's mother remembers that Karan's sister birthday is before 20th August but after 17th August. On which date of August is Karan's sister birthday?

In a mixture, unbroken and broken rice grains are in the ratio 3 : 2. How much fraction of the mixture must be drawn off and substituted with broken grains, so that the ratio of unbroken and broken grains becomes 1 : 1?

A number is divided by 52, we get 27 as remainder. On dividing the same number by 13, what will be the remainder?

A dealer marks his goods 20% above their cost prices. Then,he allows such a discount on the marked price so that he makes a profit of 8%. The rate of discount is:

If 35% of (x + y) = 40% of (x – y), then x is what percentage of y?

If 3x2 = 102 - 52, find the value of x?

The value of aa-b+bb-a is

Calculate the value of 61681 x 61681 - 31681 x 3168130000?