Answer: A. 72
Explanation: 15 + 25 + 10 = Total of marbles = 50
10/50 10 Marbles out of 50 total marbles
10/50 = ?/360
360 / 50 = 7.2
7.2*10= 72
72/360 so yeah it’s 72
This is direct proportion - it takes less time to run 15 miles than 50 miles. Show the comparison:
<span><span>5060</span>=<span>15x</span></span>
<span>50x=60×15</span>
<span>x=<span><span>60×15</span>50</span></span>
<span>x=18</span>minutes
The first company will double since there is no added value so 29(1)=29 and 29(2)=58, however, the second company won’t double because 100+25(1)=125 but 100+25(2)=150 whereas if it were doubled it would have been 250.