Quantitative Aptitude - Arithmetic Ability Questions

A man travels 50 km at speed 25 km/h and next 40 km at 20 km/h and there after travel 90km at 15 km/h. His average speed is

A solid sphere of diameter 7 cm is cut into two equal halves. What will be the increase (in cm2) in the total surface area ?

a% of b + b% of a = ______

∆ABC is right angled at B. If m∠A = 30°., then Sec C =?

If √3 = 1.732, then the value of 9+233?

In an examination, 35% of total students failed in Hindi, 45% failed in English and 20% failed in both. Find the percentage of those studnets who passed in both the subjects ?

Ramesh sold a phone at a loss of 5%. Had he sold it for Rs. 200 more, he would gave gained 15%. To gain 25%, he should sell it for

What is the smplified value of Sin2A/1+Cos2A ?