Quantitative Aptitude - Arithmetic Ability Questions

In ∆ABC, ∠B=35°, ∠C=65° and the bisector of ∠BAC meets BC in D. Then ADB is

0.08% of 120% of 50,000 is equal to __________.

An investor invested his saving in the stock market. The value of his investments increased by 12% and 9% in the first year and the second year respectively. If the value of his investments after two years became Rs 97,664 then how much had he invested (in Rs)?

If a + b = 9 and a2+ b2= 61, then ab is

If on a Sale there is 40% discount on the marked price of Rs 1000, but the sale is done at Rs 510 only then what additional discount (in %) did the customer get?

A dealer sold an article at 6% loss. Had he sold it for Rs. 64 more, he would have made a profit of 10%. Then the cost of the article is

If the cost price of 25 pens is equal to the selling price of 20 pens, then the profit percent is

If 3x= 4y= 12, then z is equal to