[转帖]April 26, JJ

smart

I met only one jj in RC , I was so unlucky !
But the Math jj appeared a lot.

Math
PS:
a jj: A rectangular photograph with 1 inch rim and the same phote with 2 inches rim , given the difference of the two
area, then ask the lengnth of the photo ?

The product of the intergers from 1 to 20, how many
factors 2 of the product?

A pentagon has 5 verteces T U R S V ,with equal sides and equal angles ,ask the value of angle TVS?

1/6 the student of the school at least know how to play one instrument,86 student of the school know how to play two or three instruments, there are 800 at school , if you choose 3 students out , what is the possibility that the 3 students exactly play one instrument? (those statistis are not exactly the same as the original question on the screen)

Verbal:
RC

Women should be allowed to be educated because the \\"motherhood\\" play an important role in develping the
ideology called \\"Republic \\",which affect the politics of
America after the American Revolution....
Scholar K argue that....
Though Scholar W argue ...

A jj about the economy of a city in Mediterrian

A kind of creature B likes to eat another creature called A
But when scientists put A and sea butterflies at the same tank, then the creature B did not eat A.. The scienctists discover ....., so B won't eat A