Quantitative Aptitude - Arithmetic Ability Questions

Raghu's tanker can fill a cistern in 4 hours. After half the cistern is filled, three more similar tankers are opened. What is the total time taken to fillthe cistern completely?

The age of Dr. Pandey is four times the age of his son. After 10 years , the age of Dr. Pandey will be twice the age of his son . The present age of Dr. Pandey's son is

Tanya got an increment of 15% in her salary. If her enhanced salary is Rs.14,030. What was her original salary?

The angles of elevation of top and bottom of a flag kept on a flag post from 30 metres distance, are 45 and 30 deg respectively. Height of the flag is [taking √3 = 1.732]

The value of tan 315° cot (­ -405° ) is equal to

What is the value of √2 Sec 45° + (1/√3)Tan 30°?

If a + b = 1 and ab = -6, then what is the value of a3+ b3?

The diagonal of a square equals the side of an equilateral triangle. If the area of the square is 12 sq cm, what is the area of the equilateral triangle?