The Venn diagram shows the number of students offer maths and physics and chemistry

There are 166 students altogether how many student offer both maths and chemistry 1)how many student offer at least one of physics or chemistry

To answer the first question, we need more information. The Venn diagram provides information about the number of students offering maths and physics, and maths and chemistry, but we don't know the intersection between maths and chemistry.

To find the number of students who offer both math and chemistry, you'll need more information about the Venn diagram. The Venn diagram should include the number of students who offer math only, chemistry only, and both math and chemistry. Can you provide me with that information?

To determine how many students offer at least one of physics or chemistry, you'll need to find the total number of students who offer physics, the total number of students who offer chemistry, and the number of students who offer both subjects.

1) Start by adding the number of students who offer physics only and the number of students who offer chemistry only.
2) Then, subtract the number of students who offer both physics and chemistry, to avoid counting them twice.

The resulting number will indicate the total number of students who offer at least one of physics or chemistry.

no diagram here, but if M are math and P are physics and C are chemistry, then

M+P+C - (M&P + M&C + P&C) + (M&P&C) = 166