Question #f63ce

1 Answer
Dec 4, 2016

Answer:

28

Explanation:

#5 :7# is the ratio between bicycles and buses, not their actual number.

Their actual number will be a multiple of these numbers.

What I mean is that the number will be #5x# bicycles and #7x# buses, where #x# is any whole number.

Then, the total number of vehicles is #5x + 7x = 12x#, which in this case is #48#.

So,
# 12x = 48#

Dividing both sides by 12,

#x = 48/12#

Therefore, #x = 4#.

Now, the number of buses is #7x#, #7xx4 = 28#.