The expenses for yoga classes in a colony are partly
constant and partly varying with the number of
members. If there are 50 members, then each of the
members has to bear ₹220 per month and if
there are 10 more members, then the share of each
of the members comes down by ₹15 per month.
How many members would be there if the share of
each member is ₹160?
(A) 150
(B) 130
(C) 90
(D) Cannot be determined