Quantitative Aptitude - Arithmetic Ability Questions

At 10% discount the selling price of a toaster is Rs 18000, what is the selling price if the discount is 37.5%?

If ab = 21 and a+b2a-b2 = 254,then the value of a2+b2+3ab

Two students appeared for an examination. One of them secured 21 marks more than the other and his marks were 80% of the sum of their marks. The marks obtained by them are

If a person has sold an article for Rs. 1300 and made a profit of 30%, find the cost price of the article.

To travel 648 km, an Express train takes 12 hours more than Rajdhani. If however, the speed of the Express train is doubled, it takes 6 hours less than Rajdhani. The speed of Rajdhani is _____.

In a class of 66 students there are 33 girls. The average weight of these girls is 61 Kg and average weight of the full class is 66 kgs. What is the average weight of the boys of the class?

If x3+ 2x2– 5x + k is divisible by x + 1, then what is the value of k?

Triangle ABC as shown in figure has line XY parallel to the BC and the line BY is the bisector of angle XYC. Which of the following option is correct?