1/6 of a book is 25 pages, and 24% of this book is (36) pages.
A roll 15dm? The iron block sank into a rectangular container with a length of 5 mm and a width of 2dm, and the water level rose by (1.5)dm.
Saw a cube into three identical cuboids, and the surface area is 64cm? The surface area of the original factory building is (96)cm? The volume is (64)dm?
The time it takes to saw a piece of wood into five sections is the total time (1/4).
One side of the square is increased to three times, and the other side is increased to four times. The circumference of the rectangle is 98cm. What is the circumference of the original square?
Solution: Let the side length of the original square be one centimeter. Then the length of the current rectangle is 4 cm and the width is 3 cm.
(4a+3a)×2=98
a=7
So the circumference of the original square is 4a=4×7=28 (cm).