SOLUTION: At a frog exhibit 3/5 of the frogs are bullfrogs, 2/3 of the remainder are tree frogs and the rest are river frogs. There are 36 bullfrogs in the exhibit. How many river frogs are

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Question 383419: At a frog exhibit 3/5 of the frogs are bullfrogs, 2/3 of the remainder are tree frogs and the rest are river frogs. There are 36 bullfrogs in the exhibit. How many river frogs are there?
Answer by jqcivil(1) About Me  (Show Source):
You can put this solution on YOUR website!
3/5 of the total is 36 BULLFROGS
3/5x = 36
x=60
TOTAL frogs is 60

2/3 of the remainder are TREE FROGS
Remainder is TOTAL minus BULLFROGS
60-36 = 24
Remainder is 24
(2/3)(24) = 16
TREE FROGS is 16

The rest are river frogs
TOTAL minus BULL minus TREE = RIVER
60-36-16 = 8
8 RIVER FROGS