8. How long does it take for the object to hit the ground? A. 5 seconds C, 10 seconds B. 12 seconds D. 15 seconds 9. Smith and Johnson together can do a piece of work in 4 days. If they had to work separately, the time taken by Johnson to do the work would be more than that of Smith by 6 days. In how many days can Smith alone do the work? A. 6 days C. 8 days B. 10 days D. 7 days
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8. How long does it take for the object to hit the ground? A. 5 seconds C, 10 seconds B. 12 seconds D. 15 seconds 9.
Answer:
8.depende kung gaano kataas yung paghuhulugan ng object
9.b