Zhi Hao, Iman and Priya each bring comic books to swap at recess. The ratio of Zhi Hao's comic books to Iman's is 1 : 1. The ratio of Iman's comic books to Priya's is 4 : 1. Zhi Hao has 40 comic books. How many comic books does Priya have?
Opening the drawing…
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