NCERT solutions for Math - Magic [English] Class 4 chapter 14 - Smart Charts [Latest edition]

How much time do we spend in this?

Note the time you spend in front of a TV or radio every day. Do this for one week.

The time spent in a week is ______ hours.

So in a month you spend about 30 × ______ = ______ hours.

Find out from your friends the time they spend in a week.

Watching TV/listening to the radio…

1. ______ children spend more than 6 hours in a week.
2. ______ children spend no time at all.
3. Most children spend ______ hours in a week. 
4. ______  children spend more than 3 hours. 

1. Ask people in your family to name one programme they like and one programme they dislike. Make a table.
   

   Family member	Programme they like	Programme they dislike
   Mother
   Father

2. The kind of programme most family members like ______
3. The kind of programme most family members dislike ______ 

Find out from 20 friends the programmes they like and dislike, and write in a table.

1. Which kind of programme is liked by most children?
2. Which kind of programme is disliked by the least number of children?
3. How many children like sports programmes?
4. Is there any kind of programme not liked by anyone? Yes/No. If yes, which one?

Read the poem carefully and answer these questions.

1. Which word comes most often in the poem?
2. Which letter has been used most?
3. Which letter comes the least?

Take a paragraph you like from your language textbook. Read carefully and find out.

1. Which word comes most often? How many times?
2. Which word comes least often?
3.  The letter used most often is ______
4. The letter used least often is ______ 

Find out from your classmates and fill the table.

Look at the table and tell :

1. Most children eat food made from ______
2. Compared to children who eat rice, those who eat wheat are more/less/equal.
3. Compare to those who eat wheat, children eating ragi are more/less.

1. How many children are acting in the drama?
2. Which are more-children making the sets or those acting?
3. What is being done by most of the children?
4. How many children are collecting dresses?

Use a scale and find out from your chart:

1. The length of the longest strip is ______ cm.
2. So, ______ has the biggest head.
3. The smallest strip is ______ cm long. It belongs to ______

All children of a school take part in different clubs:
The Chapati Chart shows the number of children in different clubs.

From the picture we can see that:

1. Half the children in the class take part in the Games Club.
2. One fourth of the children are members of the Garden Club.
3. The Drawing Club has one fourth of the children of the class.

If there are 200 students in the school, look at the above Chapati Chart and tell the number of members in each club :

1. The Games Club has ______ members.
2. The Garden Club has ______ members.
3. There are ______ members in the Drawing Club.

Who likes to get wet in the rain? A child made this Chapati Chart after asking his friends.

See the Chapati Chart and tell -

1. How many children like to get wet in the rain?
   (a) Half
   (b) One-fourth
   (c) Three-fourth
   
   
2. How many children do not like to get wet in the rain?
   (a) Half
   (b) One-fourth
   (c) Three-fourth
3. If the number of children in the class is 28, then tell the number of children
   (a) Who like to get wet in the rain?
   (b) Who do not like to get wet in the rain?

Some children were asked which of these they liked most-Tea, Coffee or Milk.

1. Total number of children ______
2. Children who like milk are `1/2`/ `1/4` of the total children.
3. Children who like coffee are `1/2`/`1/4` of the total children.
4. Show the liking for Tea, Coffee or Milk in a Chapati Chart.