Quantitative Aptitude - Arithmetic Ability Questions

What is the value of √2 Sec 45° + (1/√3)Tan 30°?

The ratio of present ages of Anil and Aakash is 4 : 5. Three years later their ages will be in ratio 7 : 8. What is the present age (in years) of Anil?

If the time increases by 7 years, then simple interest increases by Rs 8400 on a sum of Rs 6000. What is the rate (in percentage) of interest per annum?

If k is the largest possible real number such that p4+q4=(p2+kpq+q2)(p2-kpq+q2),then the value of k is

A 150 m long train, travelling at 54 km/h, crosses a platform in 42 seconds. What is the length of the platform?

What is the value of (1/2) Sec 30° + √2 Tan 60°?

What is the reflection of the point (6, -1) in the line y = 2?

If x=2+3,then the value of x2-x+1x2+x+1 is