Quantitative Aptitude - Arithmetic Ability Questions

What is the difference of the factors of the expression x2 + (1/x2) – 6?

If a retailer offers a discount of 28% on the marked price of his goods and thus ends up selling at cost price, what was the % mark up?

Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)

Select the odd word/letters/number/number pair from the given alternatives.

If a = 3+23-2, b = 3-23+2 then a2+b2-ab ?

For triangle PQR, what is the equation of altitude PS if co­ordinates of P, Q and R are (5,1), (0,­4) and (­2,3) respectively?

Two students appeared for an examination. One of them secured 13 marks more than the other and his marks were 76% of the sum of their marks. The marks obtained by them are

What is the reflection of the point (2, 3) in the line y = 4?