Question 1021356
Let x = total number of members in the club
==> 0.55x = number of members playing cricket
0.60x = number of members playing tennis
and 0.25x = number of members playing both sports

==> x = 0.55x+0.60x - 0.25x +150
<==> x = 0.90x +150
0.10x = 150
x = 1,500 <--total number of members in the club.