Question

这是一道英文数学题，急！ 谢谢了！

A cat and a dog are not satisfied with their weights。 If the weight of the cat is increased by 20 ％ while that of the dog is decreased by 10 ％，their weights will be the same . what percentage of the dog‘s original weight is the cat's original weight.

Answer 1

这题是说，有一只狗和一只猫，如果猫体重增加20%，同时狗体重减少10%，那么这时的猫的体重和狗的体重是一样的，问原来的狗和猫的体重的比。
很简单，设x是猫的体重，y是狗的体重
于是1.2x=0.9y
y/x=4/3=133.333%

Answer 2

设cat's weight is X,dog's weight is Y
(1+20%)X=(1-10%)Y
120%X=90%Y
X=75%Y
so,75% of the dog's original weight is the cat's original weight.

Answer 3

Take cat weight as C, dog's wight D
C*1.2=D*0.9 C/D=0.9/1.2=0.75
answer: 75 percent of dog's weight is the cats original weight.

Answer 4

设 cat重量为x
dog重量为y

则
120%x=90%y

所以y/x=4/3

用翻译吗？

Answer 5

120% X 90% = 108%