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NCERT
SOLUTIONS
CLASS - 4th
aglase .co
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Class : 4th
Subject : Math
Chapter : 7
Chapter Name : Jugs And Mugs
Q1 The giraffe is drinking __ liters.
Answer. 25 lit.
Page : 70 , Block Name : Jugs And Mugs
Q2 The cow is drinking __ liters.
Answer. 15 lit.
Page : 70 , Block Name : Jugs And Mugs
Q1 Do you like kheer? What do you call at it home?
Answer. Yes, I like most. We call it at home sweet dish.
Page : 73 , Block Name : Who Can Have 1 Litre Kheer
Q2 How much kheer can you have?
Answer. I can have 300 ml.
Page : 73 , Block Name : Who Can Have 1 Litre Kheer
Q3 Can you drink 1-liter water at one time?
Answer. No, I can’t.
Page : 73 , Block Name : Who Can Have 1 Litre Kheer
Q1 Have you seen a one liter water bottle?
Answer. Yes, I have seen at my home.
Page : 74 , Block Name : My Litre Bottle
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Q2 How much water does his small bottle hold?
Answer. Small water bottle holds minimum 250 ml of water.
Page : 75 , Block Name : My Litre Bottle
Q3 Then how much water does Leela’s bottle hold?
Answer. Leela’s water bottle holds 200 ml.
Page : 75 , Block Name : My Litre Bottle
Q1 Ramu got an empty 250 ml coconut oil bottle. Look at the picture and discuss what he did to
make his measuring bottle.
Answer. Ramu took three empty bottles of different measurements and take 1 liter of water he
pours rst into 250 ml and second into 500 ml and remaining water into another bottle and he can
measure of total water and add all the water and nd the total measurement.
Page : 75 , Block Name : Ramu’s Measuring Bottle
Q1 Find your own way to make a bottle which can measure 200 ml, 400 ml, 600 ml, 800 ml and 1
liter. Discuss with your friends and teacher how you made this.
Answer. Take two empty bottles. One of a large measurement and another for 250 ml. ll the 250
ml Bottle with water and pour into the large bottle and we can measure of 1 liter of water by this
methods. And take 200 ml bottle and ll it and pour into large bottle repeat this activity again
then u can measure 200 ml, 400 ml, 600 ml, and 800 ml.
Page : 75 , Block Name : My Measuring Bottle
Q1 Look at the buckets, mugs, glasses and other things in your house. Guess how much water
each can hold. Check if your guess is right by using your measuring bottle.
Answer. guess - Actual measure
Mug 250 ml - 300 ml
Glass 300 ml - 400 ml
Bucket 500 - ml 750 ml
Page : 76 , Block Name : Guess And check
Q1 Neetu has to take 3 injections in a day for 5 days. How much medicine will she need in one
day? How much medicine in all for 5 days?
Answer. An injection is 5 ml.
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No. of injections in a day = 3
Medicine in the injection in a day= 3 x 5 = 15 ml
Medicine injected in 5 days = 5 x 15= 75 ml.
Page : 77 , Block Name : Neetu In Hospital
Q2 How much do we use at a time?
Eye drops - We use less than 1 ml at a time
Answer. Cough - syrup We use almost 5 ml
Amla hair oil - We use about 8 ml.
Page : 77 , Block Name : Neetu In Hospital
Q3 List things we use more than one liter at a time. Water for taking bath
Answer. Water for bathing
Water for washing clothes
Water for cleaning the oor
Page : 77 , Block Name : Neetu In Hospital
Q1 Amina’s water bottle holds one liter of water. She drank 250 ml of water and her friend Govind
drank 150 ml. How much water is left in her bottle?
Answer. Total amount of water in bottle = 1 liter
Amina drank = 250 ml
Govind drank = 150 ml
Amount of water left in the bottle = ml.
Page : 78 , Block Name : Practice Time
Q2 Yusuf runs a tea shop. For making a glass of tea he uses 20 ml of milk. Yesterday he made 100
glasses of tea. How much milk did he use?
Answer. He uses milk to make a glass of tea = 20 ml
The milk he needed to make 100 glasses of tea = ml
Page : 78 , Block Name : Practice Time
Q3 Radha’s grandma was ill. The doctor gave her a bottle with 200 ml. of medicine. She has to
take the medicine every morning for 10 days. How many millimeters of medicine does she have to
take every morning?
Answer. Medicine contained in bottle = 200 ml
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Medicine needed in a day = ml
Page : 78 , Block Name : Practice Time
Q1 Total water used by them.
Answer. Total water used by them 165 ml.
Page : 79 , Block Name : Water-Water
Q2 How many liters of water does your family use in a day? Guess and ll this table.
Answer. Water used Water waste
Cooking and drinking 10 lit 5 lit
Washing clothes 20 lit 10 lit
Cleaning 10 lit 5 lit
Bathing 10 lit 5 lit
Page : 79 , Block Name : Water-Water
Q1 (a) Is there any tap in your school or your home which is leaking?
(b) How much water do you think we waste through a leaking tap?
Answer. (a) Yes, there is a tap at my home which is leaking.
(b) About 15 lit water we waste through leakage of the tap.
Page : 79 , Block Name : Drops And Drops Make An Ocean