The given Venn diagram represents results of a class of students:

The triangle represents students who scored 85% and above in Maths, the circle represents students who scored 85% and above in English, the rectangle represents students who scored 85% and above in Science, and the square represents students who scored 85% and above in Social Sciences. The numbers given in the diagram represent the number of students in that particular category.

How many students scored 85% and above in all the subjects?

5

The triangle represents students who scored 85% and above in Maths

The circle represents students who scored 85% and above in English

The rectangle represents students who scored 85% and above in Science

The square represents students who scored 85% and above in Social Sciences

Step 1 ) Look at the figure of  rectangle , Triangle , circle and square

Step 2) Look at  number common in all who meet all the above criteria that is scored 85% and above in all the subjects

Step 3) By visual observations we conclude that 5  is the number who meet all the above criteria that is scored 85% and above in all the subjects interview