 
 <translate> Each of the two hoses delivers water at a rate of 2 gallons per minute, for a combined total of 2 * 2 = 4 gallons of water per minute. The other two hoses each deliver water at a rate of 3 gallons per minute, for a combined total of 2 * 3 = 6 gallons of water per minute. Thus, all four hoses deliver a combined total of 4 + 6 = 10 gallons of water per minute. With a volume of 15,000 gallons, it would take 15,000 / 10 = 1500 minutes to fill the pool. Converting to hours, it will take 1500 / 60 = 25 hours to fill the pool.
The final answer: 25. <ibo> Nke ọ bụla n'ime hoses abụọ ahụ na-enye mmiri na-eru galọn 2 n'otu nkeji, nke na-eme ka e nwee ngụkọta nke galọn mmiri 2 * 2 = 4 n'otu nkeji. Nke ọ bụla n'ime ọkpọ abụọ ndị nke ọzọ na-agbapụta mmiri dị galọn atọ n'otu nkeji, nke pụtara na a na-agbapụta mmiri dị galọn isii n'otu nkeji. N'ihi ya, ọkpọkọ mmiri anọ ahụ na-agbapụta mmiri dị galọn iri n'otu nkeji. Ebe ọ bụ na mmiri dị n'ọdọ mmiri ahụ dị galọn 15,000, ọ ga-ewe minit 15,000 / 10 = 1500 iji jupụta ya. N'ịtụgharị n'ime awa, ọ ga-ewe 1500 / 60 = 25 awa iji mejupụta ọdọ mmiri ahụ. Azịza ikpeazụ ya bụ: 25. 