Simplify the following expression.

$${\left({375+125} \right)^2-\left({125-375} \right)^2}\over 375×375-125×125$$

The heights of six people are given as 6 feet 6 inches, 6 feet, 5 feet 8 inches, 6 feet 2 inches, 6 feet 4 inches, and 5 feet 10 inches, respectively. Find the average height of these six people.

If x+y+z=10, x²+y²+z²=30, then the value of x³+y³+z³-3xyz is _________.

A and B start moving towards each other from places X and Y, respectively, at the same time on the same day. The speed of A is 20% more than that of B. After meeting on the way, A and B take p hours and 72 hours, respectively, to reach Y and X, respectively. What is the value of p?

The perimeter of a rectangle is 132 m and the difference between the length and breadth of the rectangle is 14 m then find the perimeter of square whose area is 16 m² less than the area of the rectangle.

What is the value of the expression?

(tan0° tan1° tan2° tan3° tan4° …… tan89°)

Given that √4096 = 64, the value of √4096 + √40.96 +√0.004096 is-

Find the square root of (272² - 128²).