AMO · 2027 · Grades 4-5 · Self-study SET 34 Question 13

Given $\blacktriangle+\blacksquare+\blacklozenge=14$, $\blacksquare+\blacklozenge+\bullet=19$, $\blacklozenge+\bullet+\blacktriangle=16$, and $\bullet+\blacktriangle+\blacksquare=11$, what is the value of $\blacktriangle$?



Choose one option.