Quantitative Aptitude - Arithmetic Ability Questions

Sum of a fraction and thrice its reciprocal is 31/6. What is the fraction?

What is the value of 10% of 150% of 400?

If (x – y) = 7, then what is the value of (x – 15)3 – (y – 8)3?

If (8x ­- 4) = (3x + 6), then the numerical value of (x + 1)3 is

If ab-1b=cb-1c=ac-1a, then ac+ba+cb

After a discount of 34% an article is sold for Rs. 3168. What is the marked price (in Rs) of the article?

A man travelled a distance of 50 km in 8 hours. He travelled partly on foot at 5 km/hr and partly on bicycle at 7 km/hr. What is the distance (in kms) travelled on foot?

Raj purchased two laptops, first for Rs 42500 and the second for Rs 36200. He sold first laptop at a profit of 12% and the second laptop at a loss of 12%.What is the overall profit or loss?