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

If x4+1x4=119,then the value of x-1x is

The 4th term of an arithmetic progression is 15, 15th term is -29, find the 10th term?

Simple interest on a sum of Rs 50200 for 3 months is Rs 1380.5. What is the rate (in percentage) of interest per annum?

If tanθ + cotθ = 5, then the value of tan2θ + cot2θ is

In ∆ABC, ∡A + ∡B = 75 and ∡B + ∡C = 140, then ∡B =

Two trains are moving in opposite directions with the same speed. If the length of each train is 120 metres and they cross each other in 12 seconds, then what is the speed (in km/hr) of each train?

In a triangle the length of the side opposite the angle which measures 45° is 8 cm, what is the length of the side opposite to the angle which measures 90°?