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Sets and Relations · 2022 · 29 Jul · Shift 1

2 Mathematics questions from this JEE Main paper

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2022 · 29 Jul · Shift 1
Mathematics
Sets and Relations

Sets and Relations · 2022 · 29 Jul · Shift 1

2 Mathematics questions from this JEE Main paper

Q25.Let R be a relation from the set ${1, 2, 3, \dots, 60}$ to itself such that $R = {(a, b) : b = pq$ , where $p, q ⩾ 3$ are prime numbers}. Then, the number of elements in R is :
Mathematics · Sets and Relations · MCQ
Q46.Let $S = {4, 6, 9}$ and $T = {9, 10, 11, \dots, 1000}$ . If $A = {a_{1} + a_{2} + \dots + a_{k} : k \in N, a_{1}, a_{2}, a_{3}, \dots, a_{k}$ $ϵ S}$ , then the sum of all the elements in the set $T - A$ is equal to …
Mathematics · Sets and Relations · Numerical