Extra Practice Chapter 15 Review 4th Grade English Page 95 Answers Sheet
NCERT Class 4 Maths Chapter 9 Halves and Quarters, solutions are provided here for all the students, preparing for their concluding exams. These question bank solutions are helpful for students to make them empathize each and every concept explained in the chapter. The answers in NCERT Solutions are designed past our subject area experts and with respect to CBSE syllabus (2020-2021).
The concluding exam question papers are prepared according to the exercise questions present in Affiliate 9 of the Maths class 4 NCERT book. Therefore, here the solutions behave explanations for all the types of questions which tin can be asked from this affiliate and students tin can sympathise them easily also.
NCERT Solutions Class 4 Maths Chapter 9 Halves and Quarters:-Download PDF Here
Admission NCERT Solutions for Class 4 Maths Chapter 9 Halves and Quarters
NCERT book Page No: 95
Half – Half
Question: 1
If the cat ask you to divide the chapati every bit, how will yous split up it?
Answer: I will fold the chapati into ii equal halves and then break them from the creased line. Now, the chapati is half.
Half of Half
Question: ii
If two more cats come up for food, how will you lot divide i chapatti every bit for four cats?
Respond: First divide the chapati's in two halves. Again split it into further 2 halves. At last I volition suspension the chapatti from the creased line as shown below
NCERT book Folio No: 95-96
One-half of Many Pieces
Rani got a chocolate. She divided it equally and gave half to her friend Reena.
Question: three
(a) Circumvolve the portion that Reena got.
Answer:
(b) How many pieces of chocolate are there?
Reply: The chocolate has totally half-dozen pieces.
(c) How many pieces were left with Rani?
Answer: Rani gave half of her chocolate to her friend Reena. So, now Rani was left with 3 pieces of chocolate.
NCERT book Folio No: 96-97
Many Shapes from a Half Canvas
Question: 4
Draw different shapes using these triangles. I such shape is shown here.
Answer: Shapes using these triangles are shown beneath
Many Means to Cut into Half
Question: 5
In how many different ways tin can y'all cut a rectangle into half? Draw five different ways. Can you bank check if they are equal?
Answer: The five different ways of a rectangle is shown beneath
Each part of a rectangle are equal as they exactly coincides with the other role.
Question: six
In how many unlike ways can y'all cut a rectangle into four equal parts? Describe five different ways. Can you lot check if they are equal?
Reply: A rectangle divided into iv equal parts are shown below. Yep, they are equal since each part exactly coincides with the remaining three parts.
NCERT book Page No: 98
Cut the Block
Rajni'southward father brought a cake. She divided the block into iv equal parts – for herself, her blood brother Raju, her father and her female parent.
Question: 7
Colour each share with different colours.
Answer:
Question: 8
How much does each become?
Answer: Each become i/four of the block
Question: 9
Mother gave her share of block to Rajni. At present colour the full office that Rajni will become.
Answer: Each person get 1/iv of the cake. So,
Block that Rajni got = her share + her mother'southward share
= 1/4 + 1/4
= ii / 4
= i / 2
Hence, Rajni got ane/2 part of the cake.
Question: x
Out of 4 parts Rajni will get ________ parts, which is equal to one-half of the cake.
So she can write information technology as ____ / iv or one/2
Answer: Rajni gets 2 parts of block out of four parts. Hence, she tin can write it every bit 2/4 or ½
Question: eleven
Colour the share Raju got.
Reply: The shaded part shows one/4 part of the block which Raju has got.
Question: 12
How much of the cake do Rajni and Raju together get? Color their total share. Altogether they get three parts out of 4, then we can write it as 3/4
Answer: The total cake together Rajni and Raju got is 3/4
NCERT book Page No: 99
Question: 13
This full pumpkin will cost Rs _________
Answer: Toll of 1/4 pumpkin = Rs 10
Cost of one pumpkin = Rs x ÷ 1/iv
= x × 4
= 40
Hence, cost of one pumpkin = Rs twoscore
Question: 14
Kundu how much of this pumpkin will I get for Rs 10? Second pumpkin seller-Half.
This total pumpkin will price Rs _________
Answer: Toll of one-half pumkin = Rs 10
So, the cost of full pumpkin = Rs 10 + Rs ten
= Rs twenty
Therefore, the price of ane full pumpkin is Rs 20
NCERT book Page No: 100
Using a Price List
Question: fifteen
(a) How much does one/ii kg of tomatoes cost?
Reply: The toll of 1 kg tomato = Rs 8
Hence, the price of ane/2 kg lycopersicon esculentum = Rs viii / 2
= Rs iv
Therefore, the toll of 1/ii kg tomatoes = Rs 4
(b) Which costs more – 1/ii kg of onions or one/4 kg of carrots?
Reply: The toll of i kg onion = Rs 10
Therefore, the cost of one/two kg onion = 10 / 2
= Rs v
The cost of 1 kg carrot = Rs 16
Hence, the price of 1/4 kg carrot = sixteen / four
= Rs 4
Hence, the toll of 1/ii kg of onions is more the toll of 1/four kg of carrots
(c) What is the price of 3/4 kg of potatoes?
Answer: The cost of 1 kg of potatoes = Rs 12
The cost of 3/iv kg of potatoes = Rs 12 × 3/4
= Rs 36/4
= Rs 9
Therefore, the toll of 3/4 kg of potatoes = Rs 9
(d) Keerthi is going for shopping. She has but Rs twenty with her. Tin can she buy all the things in her shopping listing?
Respond: Total money Keerthi has = Rs 20
Her shopping listing includes = i/2 kg potatoes, ii kg pumpkin and ane/4 kg carrots.
Price of 1 kg potatoes = Rs 12
Cost of ane/ii kg potatoes = Rs 12 / 2
= half-dozen
Price of ane kg pumpkin = Rs 4
Cost of two kg pumpkin = Rs 4 × ii
= Rs 8
Cost of 1 kg carrot = Rs 16
Price of 1/four kg carrot = Rs xvi/4
= Rs iv
Total toll of all the vegetables = vi + 8 + 4
= Rs 18
Hence, Keerthi can purchase all the vegetables in her shopping list.
NCERT book Folio No: 101-103
Practice Time
Question: xvi
(a) What part of the whole is coloured? Write below each shape.
Reply:
(b) Colour that function of the shape which is written below.
Reply:
(c) Cutting in half
Draw a line which divides these shapes into half.
Answer:
(d) Colour half the number of shapes as shown here.
Answer:
(due east) Colour 1/4 of these shapes.
Answer:
(f) Match the coloured part every bit shown.
Answer:
(g) Brand the other half
1/ii of the picture is drawn here. Can you consummate the picture past drawing the other one-half?
Answer:
(h) This is a quarter of a movie. Can you consummate information technology? How many more quarters will you lot describe to complete it?
Answer:
To complete the pic, iii more quarters are required.
Half and Quarter of a Metre
Using your metre calibration, cut a string of 1 metre.
On this string, mark the length 1/ii metre, 1/4 metre and iii/iv metre.
Using your string, depict a line of length ½ metre on the floor.
Question: 17
How many centimetre long is the line?
Reply: We know
1 m = 100 cm
1/2 k on the flooring = 100 cm ÷ 2
= 50 cm
Hence, 1/2 thousand on the floor = l cm long
Question: xviii
So,
one/2 metre = ………….. cm
1/4 metre = ………….. cm
3/4 metre = ………….. cm
Can yous see that when we add together 1/2 and 1/4 we become 3/4?
Reply:
one/2 metre = 100 × 1/2
= 50 cm
1/4 metre = 100 × 1/4
= 25 cm
3/4 metre = 100 × 3/iv
= 75 cm
At present, calculation 1/2 and 1/4, nosotros go
1/2 + ane/4 = (ii + 1)/4
= iii/4
Hence, on adding 1/2 and 1/four we go 3/4
NCERT volume Folio No: 104
Sharing Milk
This bottle is full of milk and it holds one litre. The milk is put into 4 other bottles then that each bottle has 1/iv litre of milk.
Question: 19
Shade the bottles to prove the level of milk in each.
Respond:
The shaded portion shows the level of milk marked in the figure given beneath
Question: xx
How many millilitres of milk does each bottle have?
Answer: We know
1 litre = 1000 millimetres
Each bottle contains = 1/4 litre of milk
Hence, each canteen contains = chiliad mL ÷ 4
= 250 mL of milk
Question: 21
Shan poured 1 litre of milk into two bottles so that the first bottle holds 3/4 litre and the other holds 1/4 litre.
(a) Shade the level of milk in each bottle.
(b) How many millilitres of milk does each bottle concur?
Respond:
(a) The level of milk marked is shown in beneath figure
(b) We know 1 litre = m millilitres
Quantity of milk in kickoff bottle = 750 mL of milk
Quantity of milk in second bottle = 250 mL of milk
NCERT book Page No: 105
Residual the Weight
Question: 22
Choose from the weights above to brand the 2 pans equal. In how many ways tin can yous do information technology?
Answer: In that location are many ways. Some of the means are as follows
(i) i kg + 500 gm + 500 gm
(2) 1 kg + 500 gm + 250 gm + 250 gm
(iii) 1 kg + 500 gm + 200 gm + 200 gm + 100 gm
(four) i kg + 250 gm + 250 gm + 250 gm + 200 gm + l gm
(v) one kg + 200 gm + 200 gm + 100 gm + 500 gm
Question: 23
In how many dissimilar ways can you residue this weight of 3/4 kg?
ane) ………..
two) ………..
3) …………
Answer:
3/4 kg = one thousand gm × 3/four
= 750 gm
1) 250 gm + 250 gm + 250 gm
two) 250 gm + 250 gm + 200 gm + 50 gm
3) 500 gm + 250 gm
NCERT volume Page No: 106
Why is it Wrong?
Question: 24
Kannan shaded some parts equally shown. Just his friend Mini says that it is wrong. Explain why it is wrong.
Reply: Out of 5 parts of the rectangle, just 2 parts are coloured. Hence, it is 2/v function which is coloured. In the triangle we cannot say how many parts of it is coloured, but it is clear that the coloured part is less than 1/2 role. Hence, ane/2 is wrong.
Practice Time
Question: 25
There are 60 mangoes, 1/2 of them are ripe. How many mangoes are ripe?
Answer: Full number of mangoes = 60 mangoes
Hence, number of mangoes which are ripe = 1/ii × threescore
= 30 mangoes.
Therefore, xxx mangoes are ripe
Question: 26
There are 32 children. i/2 of them are girls. How many children are boys?
Answer: Total number of children = 32
Half of them are girls, so remaining half will be obviously boys
Hence, half of 32 = 1/two × 32 = 16
Therefore, the number of boys are 16
Question: 27
There are 20 stars. A quarter of them are red. How many stars are scarlet? How many stars are not blood-red?
Answer: Total number of stars = 20 stars
ane/four stars are red
Hence, the number of crimson stars = 1/4 × 20
= 5 stars
Therefore, number of stars which are red = 5 stars
Out of 20 stars, if 5 stars are red then plainly remaining 15 stars are not red.
Therefore, number of stars which are not ruddy = 15 stars
Question: 28
Ravi wants a pencil. It costs Rs two. He gives a one-rupee coin, one one-half-rupee coin and i quarter-rupee coin. Is it enough?
Answer: Total amount that Ravi gave = (1 + 0.fifty + 0.25)
= Rs ane.75
But, the cost of the pencil = Rs 2
Money required to buy a pencil = Rs (2.00 – ane.75)
= Rs 0.25
Therefore, nevertheless Rs 0.25 is required to purchase a pencil.
Hence, money given by Ravi is not plenty.
Frequently Asked Questions on NCERT Solutions for Grade 4 Maths Chapter 9
What did Mintu and Mottu steal from Malini's kitchen and why did they quarrel in Chapter 9 of NCERT Solutions for Class 4 Maths?
Mintu and Mottu, both cats stole a chapati from Malini'due south kitchen. As both the cats wanted to accept the chapati they started quarrelling for it. Later, Tittu monkey sorted their quarrel by dividing the chapati.
How did Rajni cutting the block which her father brought as mentioned in Chapter 9 of NCERT Solutions for Class four Maths?
When Rajni's begetter brought Rajni a cake, she divided the block into iv parts – for herself, her brother Raju, her male parent and her mother. Then, initially anybody got i out of four parts of the cake i.due east. ¼.
How did Rani share her chocolate with her friend Reena in Chapter 9 of NCERT Solutions for Class 4 Maths?
Rani had a chocolate and she divided it equally to share it with her friend Reena. She gave half of the six chocolate pieces. Thus, each of them had three pieces of chocolate to eat.
Source: https://byjus.com/ncert-solutions/ncert-solutions-class-4-maths-chapter-9-halves-and-quarters/
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