Quantitative Aptitude - Arithmetic Ability Questions

The median of the numbers 14, 12, 12, 16, 13 and 18 is

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

The 3rd and 9th term of an arithmetic progression are -8 and 10 respectively. What is the 16th term?

The lengths of diagonals of a rhombus are 24cm and 10cm the perimeter of the rhombus (in cm ) is :

What is the third proportional to 9 and 15?

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

Select the odd letters from the given alternatives.

Find the sum of interior angles of a dodecagon?