Question

Rehan bought 5 kg of wheat and 2500 grams of rice. How many kilograms worth wheat and rice does he have tp carry home?

• A. $7.0kg$
• B. $3.0kg$
• C. $5.25kg$
• D. $7.5kg$

Answer 1

The correct option is D $7.5kg$

Since we want the final answer in kilograms, let us convert 2500 grams of rice into kilograms.
We have 1 kg = 1000 g.
$\Rightarrow$ 1 g =$\frac{1}{1000}kg$
$\Rightarrow$ 2500 g = $2500\times \frac{1}{1000}kg=2.5kg$

Now, the total weight of rice and wheat is given by 5 kg + 2500 g = 5 kg + 2.5 kg = 7.5 kg.