Page 148 - ICSE Math 4

3. Solve the following word problems.
(a) The weight of a tea bag is 28 g. What will be the weight of 9 such tea bags?

(b) The weight of 8 matchboxes is 400 g. What will be the weight of each matchbox?
(c) The weight of a teddy bear is 280 g. What will be the weight of 6 such teddy
bears?

(d) Anubhav buys 3 packets of strawberries weighing 6 kg 876 g. What will be the
weight of each packet of strawberry?
(e) The weight of 7 cement bags is 385 kg. What will be the weight of each bag?

Measurement of Capacity

Capacity is the maximum amount that a container can hold. We have already learnt how
to measure capacity using non-standard units in the previous class. Now let’s learn to
measure capacity of diff erent containers using standard units.

Look at the pictures of standard containers.
These containers are marked with

standard units to measure capacity.
The standard units used for the
measurement of capacity are litres and
millilitres. These two units of capacity 1 L 500 mL 250 mL 100 mL 50 mL
are denoted by L and mL, respec vely. Containers used for measuring milk

We use litres (L) to measure large
quan es of liquids like petrol, diesel,
milk and water.
We use millilitres (mL) to measure small

quan es of liquids like syrups and so
drinks. 1 L 500 mL 250 mL 100 mL 50 mL
Containers used for measuring oil
Conversion of Units of Capacity

We know that litres and millilitres are the two units used to measure capacity. We can
convert units of capacity from one form to another in the same way as we convert the
units of length and weight.
Litres to millilitres

In the metric system, litre (L) is the unit of capacity which is equal to 1,000 mL, i.e.,
1 L = 1,000 mL.

 To convert litres to millilitres, we mul ply the litres by 1,000.
 To convert litres and millilitres to millilitres, we mul ply the litres by 1,000 and then

add the millilitres to it.

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