Let X be the set consisting of the first 2018 terms of the arithmetic progression 1,6, 11,
Channel: Doubtnut
Date: 02/02/2020

Let X be the set consisting of the first 2018 terms of the arithmetic progression 1,6, 11,.... and Y be the set consisting of the first 2018 terms of the arithmetic progression 9,16,23,... Then, the number of elements in the set `X uu U ` is ____