Quantitative Aptitude - Arithmetic Ability Questions

In the following question, select the odd letter/letters from the given alternatives.

Which of the following is TRUE?

0.296 + 2.96 + 29.6 + 296 = ?

Find the value of '?' in 512 × 125 ÷ 15625 = 3125 × 25?

The 3rd and 8th term of an arithmetic progression are -13 and 2 respectively. What is the 14th term?

What is the value of tan 300°?

The diagonal of a square is equal to the side of an equilateral triangle. If the area of the square is 15√3 sq cm, what is the area of the equilateral triangle?

Four numbers, when arranged in ascending order, are w, x, y and z. The average of the smallest three numbers is 18, while the average of the largest three was 22. What is the range of the data?