Question: The ratio of the number of buses to trucks in a transport depot is 7:5. If there are 175 buses, how many trucks are there?
(A) 110
(B) 120
(C) 125
(D) 135
Solution:
Let the number of buses and trucks be 7x and 5x, respectively. Given that there are 175 buses:
7x=175
x= 175⁄7 =25
The number of trucks:
5x=5×25=125
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