Lenovo is related to numbers, which should be addition and subtraction. Note that each figure consists of two shapes, with and without images intersecting.

The first one is 3, which consists of squares and circles. It should be the addition or subtraction of two numbers. Assuming that disjoint is addition and intersection is subtraction, then there is

The square is 1 or 2, and the circle is 2 or 1.

The second is that the intersection of a circle and a square is 1. It can be seen from the first picture that the second intersection cannot be addition, so it can be seen that the intersection must not be addition (basically, it can be determined that the assumed intersection is addition and the intersection is subtraction).

The third is a square and a triangle. These two shapes don't want to intersect. The number is 6, which should be the sum of two numbers. If the square is 1, the triangle should be 5, if the square is 2, the triangle should be 4.

The fourth figure consists of a triangle and a square. According to the previous inference, the square may be 1 or 2, and the triangle may be 4 or 5. There is only one case where these two numbers can form 4, that is, 5- 1, from which it can be concluded that a square is 1, a triangle is 5, and a circle is 2. .

To sum up, the fifth figure is a triangle and a circle, the disjoint is 5+2=7, and the intersection is 5-2=3.

I hope so.