Question

There are some four-wheelers and six-wheelers in a garage. The total number of wheels of these vehicles is 120 . The number of four-wheelers is $3/2$ times the number of six-wheelers. Find the number of sixwheelers in the garage.

• A. 20
• B. 5
• C. 15
• D. 10

Answer 1

Answer: (D)

Let the number of six-wheelers be $x$.
$\therefore \text{ The number of four-wheelers }=\frac{3}{2}x$
$6x+\frac{3}{2}x\times 4=120$
$6x+6x=120\Rightarrow 12x=120$
$x=10$
$\therefore$ The number of $\mathrm{six}$ wheelers $=10$