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?

What is the simplified value of 1cosec A + cot A2 ?

Ritesh sold a pen for Rs. 36 with a profit of 20%. If it were sold for Rs.33, then what could be the percentage of profit or loss?

The surface area of a sphere is 5544 sq.cm. Find its diameter (in cm).

Find out the odd word/letters/number/number pair from the given alternatives.

The LCM of 14, 21 and 35 is

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

What must be the length (in cm) of the diagonal of a rectangle if its area and breadth are 120 sq.cm and 8 cm respectively ?