Let X= n N: 1 n 50 . If A= n X: n is a multiple of 2 and B= n X: n is a multiple of 7 , then the number of...

Question

Let X= n N: 1 n 50 . If A= n X: n is a multiple of 2 and B= n X: n is a multiple of 7 , then the number of elements in the smallest subset of X containing both A and B is__________.

Accepted Answer

29

JEE Main 2020 Mathematics question

Solution