Quantitative Aptitude - Arithmetic Ability Questions

Δ XYZ is right angled at Y. If m∠Z = 60°, then what is the value of (1/√2) Sec X?

What is the value of (4a2 + 8b + 14c + 2)/2 ?

What is the value of sec 4π/3?

What is the simplest form of (1 + cosA)(cosecA ­ cotA)?

Reflection of the point (­1,4) in the x­axis is

Two numbers are in the ratio 4:5 and their HCF is 13. Their LCM is

Marked price of an item is Rs 300. On purchase of 2 items discount is 24%, on purchase of 5 items discount is 38%. Rachna buys 7 items, what is the effective discount?

$$\begin{gathered} If (x – 2)2 + (y + 3)2 + (z – 15)2 = 0, then what is the value of \\ x + y + z – 5? \end{gathered}$$