Question

On his 5th birthday, Jumbo the elephant weighed 4 tons, on his next birthday he weighed 5.5 tons, then the weight gained by him in 1 year is pounds.

• A. 2500
• B. 3000
• C. 2000

Answer 1

The correct option is B 3000

On 5th birthday Jumbo weighed $4$ tons.
After a year he weighed $5.5$ tons.
$\therefore$ Weight gained $=5.5-4=1.5$ tons
We know that $1$ ton = $2000$ pounds
Let $1.5$ tons be "$x$" pounds.
$\Rightarrow 1\text{ton}:2000\text{pound}::1.5\text{ton}:x\text{pound}$
$\Rightarrow \frac{1}{2000}=\frac{1.5}{x}$
$\Rightarrow x=1.5\times 2000=3000$ pounds
$\therefore$ Jumbo gained $3000$ pounds of weight in one year.