Question

The table below represents the weight of raw materials(y) required for various length of the bridge(x):


Calculate the weight of raw materials required for 250 m long bridge.

• A. 500 kg
• B. 750 kg
• C. 1000 kg
• D. 1250 kg

Answer 1

The correct option is D 1250 kg

$\text{From the data,}\frac{y}{x}\text{is given as:}$

Hence,
$\frac{y}{x}=5$
$\Rightarrow y=5x$

∴ Weight required for 250 m long bridge
$\Rightarrow y=5\times x$
$=5\times 250$
$=1250$ kg