Quantitative Aptitude - Arithmetic Ability Questions

70% of the cost price of a article is equal to the 40% of its selling price. What is the profit or loss percentage?

A home theatre set is Rs. 4950. If two successive discounts of 20% and 15% are given, then its selling price is

If the average age of 20 students in Class-I is 10 years and average age of 25 students in Class II is 12 years, find the average age (in years) of all students.

Tapas, Avi and Rishi shared a cake. Tapa had 1/2 of it, Rishi had 1/3 of it, and Avi had the rest. What was Avi's share of the cake?

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

If x + y + z = 22 and xy + yz + zx = 35, then what is the value of (x – y)2 + (y – z)2 + (z – x)2?

The number 3521is divided by 8. What is the remainder?

On a certain principal if the Simple interest for two years is Rs 3000 and Compound interest for the two years is Rs 3225, what is the rate of Interest?