Answer :
Answer:
D. 5 hr.
Step-by-step explanation:
It´s just like you´re doing division so you can divide 3 by 15 and you know that 5 x 3 = 15 so D is your answer
D 5 hours because it will take him 3 x ? Hours to do it so you could do 15 divided by 3 to get ? Which is 5 so the answer is D 5