Question

Match the weights to be used to the items to be weighed that the two of them balance each other on a scale.

• A. 2 kg of rice
• B. Half a kg of wheat
• C. 1 kg of maize

Answer 1

We know that 1 kg = 1000 g.

Now, in the first image, we have two weights of 500 g and one weight of 1 kg.

$\text{Total weight}=1\text{kg}+500\text{g}+500\text{g}$
$=1000\text{g}+500\text{g}+500\text{g}$
$=2000\text{g}$
$=2\text{kg}$
$\therefore$ These weights can be used to measure 2 kg of rice.

Similarly, for the second image:
$\text{Total weight}=100\text{g}+100\text{g}+100\text{g}+100\text{g}+100\text{g}$
$=500\text{g}$
$=\text{Half a kg}$
$\therefore$ These weights can be used to weigh half a kg of wheat.

Lastly, total weight in third image equals
$500\text{g}+100\text{g}+100\text{g}+100\text{g}+100\text{g}+100\text{g}$
$=1000\text{g}$
$=1\text{kg}$
and can be used to weigh 1 kg of maize.