Quantitative Aptitude - Arithmetic Ability Questions

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 9% per annum is Rs 405. The sum is ______ .

Total surface area of a cube is 486 sq cm, find sum of length of all its edges?

In the following question, select the missing number from the given series.34, 69, 140, 283, ?, 1145

The traffic lights at four different road crossings change after every 15 sec, 18 sec, 27 sec and 30 sec respectively. If they all change simultaneously at 6:10:00 hours, then at what time will they again change simultaneously?

The perimeter of a square is 30 cm. Find its area (in cm²).

If x = 5 + 15 - 1 & y = 5 - 15 + 1, then find the value of x2 - y2.

A discount of 45% on an article is equal to the discount of 65% on other article. What is the respective ratio of the marked price of both the articles?

What is the slope of the line 4x - 8y = 3?