 
 <translate> What was the question for this implicit rationale, and corresponding answer?
In 1 hour it fill 1/20 + 1/12 - 1/20 = 1/12
So fill tank fill up in 12 Hours
 The answer: (E) <hau> Mene ne tambaya don wannan ma'anar ma'ana, da kuma amsar da ta dace? A cikin awa daya zai cika 1/20 + 1/12 - 1/20 = 1/12 Saboda haka cika tanki cika cikin 12 hours Amsar ita ce: (E) 