1. The side length of a square is two seventh of a meter, its perimeter is () decimeter, and its area is () square decimeter 1. The side length of a square is 2 / 7 decimeters, its perimeter is () decimeters, and its area is () square decimeters. 2, 1.2 are more than its reciprocal. 3. There is a basket of apples. After two-thirds of the apples are sold, another 4kg is sold. At this time, there are still 16KG left. This basket of apples is originally () kilogram

1. The side length of a square is two seventh of a meter, its perimeter is () decimeter, and its area is () square decimeter 1. The side length of a square is 2 / 7 decimeters, its perimeter is () decimeters, and its area is () square decimeters. 2, 1.2 are more than its reciprocal. 3. There is a basket of apples. After two-thirds of the apples are sold, another 4kg is sold. At this time, there are still 16KG left. This basket of apples is originally () kilogram

8/7 4/49
11/30
(16 + 4) / (1-2 / 3) = 60kg