Quantitative Aptitude - Arithmetic Ability Questions

The perimeter of two similar triangles ABC and PQR are 36 cms and 24 cms respectively. If PQ = 10 cm then the length of AB is

What is the value of [sin (y – z) + sin (y + z) + 2 sin y]/[sin (x – z) + sin (x + z) + 2 sin x]?

If a3 + a - 1 = 0 then find the value of a6 + a4 + a - 2

The length of one side and the diagonal of a rectangle are 7 cm and 25 cm respectively. Find its area (in cm²)

Find equation of the perpendicular bisector of segment joining the points (2,-5) and (0,7)?

A, B and C can complete a work in 20, 24 and 30 days respectively. All three of them starts together but after 4 days A leaves the job and B left the job 6days before the work was completed. C completed the remaining work alone. In how many days was the total work completed?

Of the 3 numbers whose average is 72, the first is 2/7 times the sum of other 2. The first number is

How much does one need to add to 2/3 to obtain 3/2?