Quantitative Aptitude - Arithmetic Ability Questions

The cube of 997 is

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

The age of Rakhi is twelve times that of her daughter Anubha. If age of Anubha is 3 years now, then what was the age of Rakhi, 2 years earlier?

If the age of Rahul is 5 years more than his friend Ajay's age and the age of Rahul's wife is 6 years less than Rahul, and Ajay's wife is 1 year older than Rahul's wife, then which of the following statements is true?

Two labourers A and B are paid a total of Rs 650 per day. If A is paid 160 percent of what is paid to B, how much (in Rs) is B paid?

Which single discount will be equal to two successive discounts of 12% and 5%?

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

Which of the following quadratic equations has real roots?