Working simultaneously, eight pumps fill in a pool in 32 hours. All pumps work at the same pace. If only half of the pumps are working, in how many hours will the pool be filled in? PLS HURRY will mark brainliest
With 8 pumps it takes 32 hours to fill a pool. We know this is inverse variation so all the products are the same. 32 * 8 = 256, so now we know we can get the answer by diving 256 by 4, getting 64.