Question

The value of x, for which the two rational numbers $\frac{3}{7},\frac{x}{42}$ are equivalent, is ___________.

• A. $18$
• B. $15$
• C. $12$
• D. $10$

Answer 1

The correct option is A $18$

numbers $\frac{3}{7},\frac{x}{42}$ are equivalent

so $\frac{x}{42}=\frac{3}{7}$

$x=\frac{3}{7}\times 42$

$x=18$