RBSE Solutions Class 5 Maths Chapter 15 Capacity More Ques

Question 1. See your surrounding items and find which of them is measured by weighing and which of them is measured by filling a certain shape of containers.
Answer:

In simple words: Some things we buy are weighed, like fruits and rice. Other things, especially liquids, are measured by filling them into containers of a certain size, such as milk or juice. Both methods help us get the right amount.

🎯 Exam Tip: Remember that solids are generally weighed using scales, while liquids are measured by their volume using measuring containers.

Question 1. Show containers used to measure liquid items.
Answer: The containers used to measure liquid items come in different capacities. These often include a 1 Litre container, and smaller containers for millilitres such as 500 ml, 200 ml, 100 ml, and 50 ml. These different sizes help measure liquids accurately, from large amounts to very small ones.
In simple words: We use special containers to measure liquids. These containers have marks like 1 Litre, 500 ml, 200 ml, 100 ml, and 50 ml to show how much liquid they hold.

🎯 Exam Tip: Always note the units, Litre (L) for larger quantities and millilitre (ml) for smaller quantities, and remember that 1 Litre equals 1000 millilitres.

Question 2. What is the relation between container of 1 litre capacity and containers of different capacity?
Answer: A 1 litre container can be filled by combining smaller containers of different capacities. For example, 1 litre is equal to two 500 ml containers, or five 200 ml containers, or ten 100 ml containers. This shows that 1 litre is equivalent to 1000 millilitres.
\[ \text{1 Litre} = \text{500 ml} + \text{500 ml} \]
\( \implies \) \[ \text{1 Litre} = \text{200 ml} + \text{200 ml} + \text{200 ml} + \text{200 ml} + \text{200 ml} \]
\( \implies \) \[ \text{1 Litre} = \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} + \text{100 ml} \] In simple words: One big 1 litre bottle holds the same amount as many smaller bottles put together. For instance, you can fill a 1 litre bottle with two 500 ml bottles or ten 100 ml bottles. This helps us understand how different liquid measures are connected.

🎯 Exam Tip: Memorize the key conversion: 1 litre = 1000 millilitres. This is crucial for solving problems involving different liquid capacities.

Practice Work

Question 1. How much litre of oil will we get from given measurements?
(i) 1 Litre, 500 ml, 200 ml
(ii) 1 Litre, 1 Litre, 1 Litre, 500 ml
(iii) (500 + 500) millilitre + 350 millilitre
(iv) 3 litre 800 ml = ..... (Express as sum of smaller units)
Answer:
(i) 1 litre + 500 ml + 200 ml = 1 litre 700 millilitre. This means we combine all the liquids to find the total volume.
(ii) 1 litre + 1 litre + 1 litre + 500 ml = 3 litre 500 millilitre. Adding all the litres and millilitres separately gives the total amount.
(iii) (500 + 500) millilitre + 350 millilitre = 1000 millilitre + 350 millilitre = 1 litre 350 millilitre. First, add the millilitres, and then convert 1000 millilitre to 1 litre.
(iv) 3 litre 800 ml = 1 litre + 1 litre + 1 litre + 500 ml + 200 ml + 100 ml. Here, we break down the total volume into common measuring units.
In simple words: For parts (i), (ii), and (iii), we add up all the amounts of liquid given to find the total. For part (iv), we show how a larger amount of liquid can be made up of smaller, standard measuring units like 1 litre, 500 ml, 200 ml, and 100 ml.

🎯 Exam Tip: When adding different units, always group litres with litres and millilitres with millilitres first. Remember to convert 1000 ml to 1 litre when the millilitre total exceeds 999.