Step-by-step explanation:
It is known that a brick has the shape of a rectangle. And formula to calculate the volume of a rectangle is as follows.
Volume of rectangle = length × height × width
Since, it is given that length is 25 cm, height is 5 cm and width is 15 cm. Therefore, calculate the volume of brick as follows.
Volume of brick = length × height × width
= 25 cm × 5 cm × 15 cm
= 1875

Hence, we can conclude that volume of the brick is 1875
.