Quantitative Aptitude - Arithmetic Ability Questions

A flask has two holes. The 1st hole alone makes the flask empty in 9 minutes and 2nd hole alone makes the flask empty in 16 minutes. If water leaks out at a constant rate, how long in minutes does it take if both the holes together empty the flask?

PQR is a right angled triangle in which ∠R = 90°. If RS ⊥ PQ, PR = 3 cm and RQ = 4 cm, then what is the value of RS (in cm)?

The pair of linear equations 3x + y = 1 and px + 2y = 5 has no finite solution if

Find the value of 6732.8 + 673.28 + 67.328 + 6.7328 + 0.67328 ?

A bank offers 10% compound interest per half year. A customer deposits Rs. 2000 each on 1st January and 1st July of a year. At the end of the year, the amount he would have gained by way of interest is

The side BC of ΔABC is produced to D. If ∠ACD = 114° and ∠ABC= (1/2)∠BAC, then what is the value (in degrees) of ∠BAC?

The successive discount of 15%, 20% and 25% on an article is equivalent to the single discount of

If tan (5x ­- 10°) = cot (5y + 20°), then the value of x + y is