Quantitative Aptitude - Arithmetic Ability Questions

4*(-­0.1(5.5 + 8.5)) of 0.5 = ?

The fraction from the ones listed below that will NOT lead to a recurring decimal is

The sum of three consecutive even numbers is 42. Find the middle number.

There are a total of 200 students in a school, of which 7/10th are boys. Find the number of girls in the school.

The simple and compound interest that can be earned in two years at the same rate is Rs 1500 and Rs 1575 respectively. What is the rate (% per annum) of interest?

Ages of Lalu and Balu are in the ratio of 1 : 2. After 7 years their ages ratio changes to 3 : 5. The elder person age is

The list price of an article is Rs. 900. It is available at two successive discounts of 20% and 10% . The selling price of the article is:

What is the value of sec 30° + cot 30°?