Quantitative Aptitude - Arithmetic Ability Questions

Of the 3 numbers whose average is 40, the first is 1/3 rd the sum of other 2. What is the first number?

Find the missing digit if it has 11 and 13 as factors?

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

Monika's father was 38 years of age when she was born while her mother was 36 years old when her brother four years younger to her was born. What is the difference between the ages of her parents?

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?

Select the odd number from the given alternatives.

A sum of Rs 4000 becomes Rs 5800 in 3 years, when invested in a scheme of simple interest. If the same sum is invested in a scheme of compound interest with same yearly interest rate (compounding of interest is done yearly), then what will be the amount (in Rs) after 2 years?

Select the odd word/letters/number/number pair from the given alternatives.