Cut it into the largest square. So the length of the square has become three times.

The subtraction part becomes longer.

5X-3X=2X collar becomes 3X rectangle area length times width 2X*3X=96.

X=4

So 5X=20 3X= 12, so the original rectangular area is 20* 12=240/

5. That was 3/4*2/5 of the book I read the next day, that is, 3/ 10, and then the 3/ 10 ratio of this book was more 1 5 pages, that is, (3/10-/kloc-

6. The number of boys is five-thirds of that of girls; Two out of seven girls in the class admit defeat.

7.A is two-thirds of B, and B is three-quarters of C.

Then the number a is the number C 3/4*2/3= 1/2.

Then c = 216/(1/2+3/4+1) = 96.

A =96/2=48

B =3/4*96=72

9、

Let two right-angled sides be A and B, then the length of the side with the original area of 1/2 * AB is extended, and the area is (A+1/3a) (B+1/3b)/2, which increases1/3.

I can only answer so much for you, I hope it can be adopted, thank you!