Quantitative Aptitude - Arithmetic Ability Questions

If the sum of the digits of any integer between 100 and 1000 is subtracted from the same integer , the resulting number is always divisibleby

The difference between the ages of two sisters is 4 years when father's age is 54. Father is elder by 2 years to mother . Younger sister's age is half of mother's age. Find the age of elder sister.

Due to increase of k% in the side, the area of a square increases by 69%. What is the value of k?

If ( x - 5)2 + (y - 2)2 + (z - 9)2 = 0, then value of (x + y - z) is

If a+1b = 1 and b+1c = 1 then c+1a = ?

What is the value of Sin 30- √2 Cos 30

If 4(4x + 5) > 2x - 1 > 4x - 3, then the value of x is

What will be the net discount (in percentage) for two successive discounts of 30% and 20%?