
Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion 
 LinkBack  Thread Tools  Display Modes 
November 14th, 2018, 06:25 PM  #1 
Member Joined: Sep 2018 From: Japan Posts: 35 Thanks: 2  Number of Clown and Angel Fish
A tank had 20 clownfish and angelfish. 4 clownfish were sold and some angelfish were added to the tank such that the number of angelfish increased by 50%. After that, there were 18 fish in the tank altogether. How many clownfish were there in the tank at first? My work: # of clownfish = C # of anglefish = A [1] A tank had 20 clownfish and angelfish => C + A = 20 [2] 4 clownfish were sold and some angelfish were added to the tank such that the number of angelfish increased by 50%. After that, there were 18 fish in the tank altogether. => C  4 + (A + .5A) = 18 My question is in [2]. I'm guessing A is the total of anglefish, but we have to add .5A more because of a 50% increase? I'm I correct for what I did in [2]? 
November 14th, 2018, 06:43 PM  #2 
Math Team Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 14,417 Thanks: 1025 
Correct.


Tags 
angel, clown, fish, number 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Clown's Paradox  krausebj0  Number Theory  2  July 14th, 2013 07:02 AM 
My angel  stainburg  New Users  20  July 9th, 2012 08:37 PM 
AREA OF FISH  lisamath  Real Analysis  1  October 5th, 2007 11:14 AM 