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Let be the set of all cards numbered from to . Let be a function defined by card number of the card…
Let $A$ be the set of all $50$ cards numbered from $1$ to $50$. Let $f: A \to \mathbb{N}$ be a function defined by $f(x) =$ card number of the card ‘$x$’. Then the function ‘$f$’ is:
- (a)one to one but not onto.
- (b)onto but not one to one.
- (c)neither one to one nor onto.
- (d)one to one and onto.
Answer
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From ISC 2023 Specimen Mathematics Paper 1, question 1(ii).