Find the number? #youtubeshorts#matheducation2.5m

Find the number of bricks, each measuring 25 c m x 12. 5 c m x 7. 5 c m required to construct a wall 6 m long, 5 m high and 0. 5 m thick, while the cement and sand mixture occupies 1/(20) of the volume of the wall.

Find the number of cubes of side 2 m to be dropped in a cylindrical vessel of radius 14 m in order to increase the water level by 5 m.

Find a number such that the ratio of (5)/(2) to the number is the same as the ratio of the number to (5)/(8) .

Find the number of divisors of the number N=2^(3).3^(5).5^(7).7^(9) which are perfect squares.

If m is a whole number is less than 5. complete the table and by inspection of the table find the solutions of the equation 2m-5=-1 :

Find the number of digits (2.5)^(200)

Find the missing number in the series 2.5, 5, 15, 60, ?, 1800

Find three rational numbers between -2 and 5