Toy store

In the toy department of store was exposed 28 dolls. 19 dolls were blondes or could speak. 12 dolls were blondes, 14 could speak. How many blondes could speak in the toy department? How many blondes could not speak?

Result

a =  7
b =  5

Solution:

a=12+1419=7a = 12+14-19 = 7
b=12a=127=5b = 12 - a = 12 - 7 = 5



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