There were a total of 10 bicycles and tricycles. If the total number of wheels was 24, how many tricycles were there?

Options

A. 2
B. 6
C. 18
D. 4

Answer

D

Explanation

Let the required number of tricycles = x.
Then, the number of bicycles = 10 - x.
According to the question, `3x + 2 (10-x) = 24 `
[`because` Tricycles = 3 wheels, Bicycle = 2 wheels]
or, `x + 20 = 24 or, x=4`.
Therefore, the required number of tricycles = x= 4.