Problema Solution
Julia’s frogs are 2/5 of the number of Rimma’s frogs. If Rimma gives 1/2 of her frogs to Julia, what will be the ratio of Julia’s frogs to Rimma’s frogs?
Answer provided by our tutors
Let
x = the number of Rimma's frogs
(2/5)x = the number of Julia's frogs
After Rimma give 1/2 of her frogs to Julia:
x/2 = the number of Rimma's frogs
(2/5)x + (1/2)x = (2/5 + 1/2)x = the number of Julia's frongs
The ratio of Julia’s frogs to Rimma’s frogs is (x/2)/((2/5 + 1/2)x) = 5/9 or 5 to 9.