There are some saplings in the school. If it is planted for students in grades five and six, there will be four seedlings per person. If only the sixth grade students are planted, there will be four seedlings per person.

To plant 12 trees, how many trees should each plant if it is only distributed to fifth-grade students?

Let the number of fifth-grade students and sixth-grade students be x and y respectively, then

4(x+y)= 12y

Get:

X/y=2/ 1 (that is, the number of students in grade five is twice that in grade six).

It is known that the sixth grade alone planted 12 trees, and the fifth grade alone planted 6 trees.

2.2065438+00 on June 22nd is Tuesday. 20 14 What day is June 22nd?

Four years have passed from 20 10 to 20 14.

They are, 20 1 1.

20 12,

20 13,

20 14,

20 12 is a leap year with 366 days, and other years are normal years with 365 days.

They are separated by:

365X3+366= 146 1 (days)

14617 = 208 (weeks). . . . 5 days

Tuesday

+

5 days = Sunday