Quantitative Aptitude - Arithmetic Ability Questions

The simple and compound interest that can be earned in two years at the same rate is Rs 1,000 and Rs 1,040 respectively. What is the rate (percent per annum) of interest?

At 5% simple interest per annum a certain sum yields a total amount of Rs. 2,790 at the end of 3 1/4 years. The sum invested was

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

The length of one side and the diagonal of a rectangle are 5 cm and 13 cm respectively. Find its area (in cm2).

Select the odd letters from the given alternatives.

When a number is increased by 34, it becomes 117% of itself. What is the number?

28% of a number is 35. What is the number?

X attempts 94 questions and gets 141 marks. If for every correct answer 4 marks is given, and for every wrong answer 1 mark is deducted, then the number of questions wrongly answered by X is __.