Joke Collection Website - Bulletin headlines - During Arbor Day, Class 7 1 and Class 73 planted 834 trees, among which Class 7 1 planted 3 fewer trees than Class 73, and each class planted several trees.
During Arbor Day, Class 7 1 and Class 73 planted 834 trees, among which Class 7 1 planted 3 fewer trees than Class 73, and each class planted several trees.
Let 7 1 class number be x and 73 class number be y, then X+Y=834. 2y-3 = X. So 3Y=837. Then Y=279. X=555 .
Equation: Let the number of students in Class 73 be x, then 2X-3+X=834, and the solution is X=279. The number of entries in July 1 day is 834-279=555.
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