Quantitative Aptitude - Arithmetic Ability Questions

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

The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the marks obtained by the last student?

A dealer marks a washing machine for Rs. 7500, and allows a discount of 6% on it. Find the selling price

What is the LCM of 64 and 56?

What is the value of tan4A + tan2A?

A wholesaler sells a watch to a retailer at a gain of 35% and the retailer sells it to a customer at a loss of 25%. If the customer pays Rs 2379.375, what had it cost the wholesaler?

The average of 12 numbers is 35. If four numbers 20, 27, 15 and 29 are removed then what will be the average of remaining numbers?

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