Quantitative Aptitude - Arithmetic Ability Questions

Triangle PQR is such that PQ = 9 cm, QR = 6 cm, PR = 7.5 cm and triangle PQR is similar to triangle XYZ. If XY = 18 cm, find the value of YZ.

Convert binary 10110 to decimal.

What is the value of ( 1/√3 + cot60) ?

What is the value of (tan60 + 1/3) ?

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

A sphere has the same curved surface area as a cone of vertical height 40 cm and radius 30 cm. The radius of the sphere is

In ΔPQR, ∠QPR = 45° and the bisectors of ∠PQR and ∠PRQ meets at O. What is the value (in degrees) of ∠QOR?

If in ΔABC, DE ||BC, AB = 7.5cm, BD = 6cm and DE = 2cm, then the length of BC in cm is