Question

If $x:2\frac{1}{3}::21:50$, then what is the value of $x$?

• A. $49$
• B. $50$
• C. $51$
• D. None of these

Answer 1

The correct option is D None of these

Since the four given quantities form a proportion, then
$x\times 50=2\frac{1}{3}\times 21$
$\Rightarrow 50x=\frac{7}{3}\times 21$
$\Rightarrow 50x=49$

$\Rightarrow x=\frac{49}{50}$