Question

An alloy contains $26\%$ of copper. What quantity of alloy is required to get $260$ g of copper?

• A. $1000$gm
• B. $950$gm
• C. $920$gm
• D. $900$gm

Answer 1

The correct option is A $1000$gm

Let the quantity of Alloy be $=xgm$

Then, $26\%$ of $x=260gm$

$\Rightarrow \frac{26}{100}\times x=260gm$

$\Rightarrow x=\frac{260\times 100}{26}gm$

$\Rightarrow x=\frac{26000}{26}gm$

$\therefore x=1000gm$