Quantitative Aptitude - Arithmetic Ability Questions

The ratio of the amount of work done by (x-1) labours in (x+1) days and that done by (x+1) labours in (x+2) days is 5 : 6. Then the value of x is

The ratio of the heights of Nani and Leelu is 4 : 3. If Leelu is 1.2 m tall, then what is the height of Nani?

If (333 + 333 + 333) (233 + 233) = 6x, then what is the value of x?

If Cos θ = 5/13, then Cosec θ = ?

If 7x - [3(2x - 3)]/2 = 1/2, then what is the value of x?

p3 + q3 + r3 – 3pqr = 4. If a = q + r, b = r + p and c = p + q, then what is the value of a3 + b3 + c3 – 3abc?

A photographer allows a discount of 10% on the advertised price of a camera. The price (in Rs) that must be marked on the camera, which cost him Rs 600, to make a profit of 20% would be

Which of the following is correct?