 
<translate> Jimlar shekarun Cooper, Dante, da Maria ita ce 31. Dante ya ninka Cooper sau biyu. Maria ta girmi Dante da shekara guda. Shekara nawa Cooper yake? Bari mu zama daidai kamar yadda zai yiwu. <eng> The sum of Cooper’s, Dante’s, and Maria’s ages is 31. Dante is twice as old as Cooper. Maria is one year older than Dante. How old is Cooper? Let's be accurate as possible. 