If Sabrina can assemble a tank in 8 hours, and Janis can assemble a
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25 Jul 2025, 23:09
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If Sabrina can assemble a tank in 8 hours, and Janis can assemble a tank in 13 hours, then Sabrina and Janis working together at their constant respective rates can assemble a tank in approximately how many hours?
(A) 21
(B) 18
(C) 7
(D) 5
(E) 2
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