Quantitative Aptitude - Arithmetic Ability Questions

If a website is selling smartphone at Rs 18,000 which is marked at Rs 25,000, then what is the discount (in %) at which the smartphone is being sold?

The third proportional of two numbers 12 and 48 is

If √(1 + cot2A)/cotA = x, then the value of x is

What is the value of cosec 5π/3?

If 3x - 8(2 - x) = -19, then the value of x is

What should be added to 5(2x-y) to obtain 4(2x - 3y) + 5(x + 4y)?

The areas of two similar triangles ΔABC and ΔPQR are 36 sq cms and 9 sq cms respectively. If PQ = 4 cm then what is the length of AB (in cm)?

Mayank, Deepak and Pawan, each of them working alone can complete a work in 5, 10 and 15 days respectively. If all three of them work together to complete a work and earn Rs. 12000 what will be Deepak's share of the earnings?