Quantitative Aptitude - Arithmetic Ability Questions

Three pipe P, Q and R can fill a tank in 12 minutes, 18 minutesand 24 minutes respectively. The pipe R is closed 12 minutesbefore the tank is filled. In what time the tank is full?

Which of the following quadratic equations has real roots?

D and E are points on side AB and AC of ΔABC. DE is parallel to BC. If AD:DB = 2:3 and area of ΔADE is 4 sq cm, what is the area (in sq cm) of quadrilateral BDEC.

The cash difference between the selling price of an article at a profit of 2% and 18% is Rs. 3. The ratio of two selling prices is

Select the odd letters from the given alternatives.

In the following question, select the odd letter pair from the given alternatives.

If (1 -­ cosA)/(1 + cosA) = x, then the value of x is

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