Quantitative Aptitude - Arithmetic Ability Questions

Find k, if the line 2x- ­3y = 11 is perpendicular to the line 3x + ky = -­4?

What is the value of [1 – tan (90 – θ) + sec (90 – θ)]/[tan (90 – θ) + sec (90 – θ) + 1]?

After a discount of 23% an article is sold for Rs 1848. What is the marked price (in Rs) of the article?

If the measure of the interior angle of a regular polygon is 1800, then how many sides does it have?

A man sells an article at 15% profit. If he had sold it for . 6 more, he would have gained 18%. The man bought the article for

Rajan sells a machine for Rs 52 lakhs at a loss. Had he sold it for Rs 62 lakh, his gain would have been 9 times the former loss. What is the cost price of the machine?

The sum of the ages of Ram and Shyam is 49. The difference between the age of Shyam and twice the age of Ram is 8. What is the age (in years) of Ram?

A carpenter can build a cupboard in 48 hours. After 12 hours he takes a break. What fraction of the cupboard is yet to be built?