 
<translate> Mene ne matsakaicin shekarun karnuka mafi sauri na 1 da 5 idan kare mai sauri na 1 yana da shekaru 10, kare mai sauri na 2 yana da shekaru 2 da ya fi karami fiye da kare mai sauri na farko, kare mai sauri na 3 yana da shekaru 4 da ya fi na kare mai sauri na biyu, kare mai sauri na 4 yana da rabin shekarun kare mai sauri na 3, kuma kare mai sauri na 5 yana da shekaru 20 da ya fi na kare mai sauri na 4? Bari mu zama daidai kamar yadda zai yiwu. <eng> What is the average age of the 1st and 5th fastest dogs if the 1st fastest dog is 10 years old, the 2nd fastest dog is 2 years younger than the first fastest dog, the 3rd fastest dog is 4 years older than the 2nd fastest dog, the 4th fastest dog is half the age of the 3rd fastest dog, and the 5th fastest dog is 20 years older than the 4th fastest dog? Let's be accurate as possible. 