Quantitative Aptitude - Arithmetic Ability Questions

The area of a circle is 38.5 cm2. Find its circumference (in cm).

The diagonal of a square is 10√2 cm, find its perimeter?

Which instrument is used for viewing the sun?

Ritesh sold a pen for Rs. 36 with a profit of 20%. If it were sold for Rs.33, then what could be the percentage of profit or loss?

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

Of the 3 numbers whose average is 64, the first number is 1/3 times the sum of other 2. The first number is

Which of the following ratio correctly depicts the division of each median of the triangle by the centroid?

A number is greater than 58 times its reciprocal by 3/4. What is the number?