Quantitative Aptitude - Arithmetic Ability Questions

If the shopkeeper sells an item at Rs 1250 which is marked as Rs 1500, then what is the discount he is offering?

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is:-

Divide 32 into two parts such that the sum of the square of the parts is 674. What is the value of the parts?

A group of boys has an average weight of 36 kg. One boy weighing 42 kg leaves the group and another boy weighing 30 kg joins the group. If the average now becomes 35.7 kg, then how many boys are there in the group?

In the given figure, PQ = 30, RS = 24 and OM = 12, then what is the value of ON?

The difference between compound interest and simple interest on Rs. 5000 for 2 years at 8% per annum payable yearly is

A can do a work in 12 days while B can do it in 15 days. They undertake to complete it together for Rs. 450. what will be the share of A in this amount of money ?

The selling price of an item inclusive of a 10% profit was Rs.440. What would be the percentage loss if the item was sold for Rs. 370?