183 member will the group have after 4 years, if the members of an online gaming group have been increasing by 25% every year. The group started with 75 members.
Explanation:
The given is,
 Members of an online gaming group is 75
 Increasing by 25% every year
Step:1
 Formula to calculate the members in gaming group after few years with an rate of increase,
  
.......................(1)
 Where, F - Members in gaming group after 4 years
 P - Members in gaming group in initially
 r - Rate of increase in year
 t - No. of years
Step:2
 From the given,
 P = 75 members
 r = 25 %
 t = 4 years
 Equation (1) becomes,
 

 

 = ( 75 ) ( 2.441406 )
 = 183.105
  F ≅ 183 members
Result:
 183 member will the group have after 4 years, if the members of an online gaming group have been increasing by 25% every year. The group started with 75 members