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JEE / Mathematics / Demo Practice

Mathematics — 10 Normal Demo Questions

Testing content only: These are normal practice questions, not PYQs. Demo activity is kept separate from real performance analytics.
DEMO 1/10Easy

If A = {1,2,3}, the number of elements in A is:

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DEMO 2/10Easy

The empty set is denoted by:

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DEMO 3/10Easy

If A ⊆ B, then every element of A is:

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DEMO 4/10Easy

The union A ∪ B contains elements that are in:

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DEMO 5/10Medium

The intersection A ∩ B contains elements:

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DEMO 6/10Medium

If A and B are disjoint, then A ∩ B =:

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DEMO 7/10Medium

For a set with n elements, the number of subsets is:

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DEMO 8/10Medium

A relation from A to B is a subset of:

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DEMO 9/10Standard

A function assigns each element of its domain:

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DEMO 10/10Standard

If f(x)=2x+1, then f(3)=:

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