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 is not a quadratic equation?

For triangle PQR, what is the equation of altitude PS if co­ordinates of P, Q and R are (5,1), (0,­4) and (­2,3) respectively?

Two students appeared for an examination. One of them secured 22 marks more than the other and his marks were 55% of the sum of their marks. The marks obtained by them are _______.

If sinC + sinD =X, then the value of X is?

Select the odd letters from the given alternatives.

Select the odd word from the given alternatives.

Select the odd letters from the given alternatives.