NCERT Solutions for Class 5th Maths Chapter 15 Samaira and Kabir collect data from 35 friends — Child TV Reporter
Book page 179–180 Updated on2026-09-19
Q1.
They collected data from 35 friends and recorded it in a notebook as shown below.Page 179 — the notebook page. Each speech bubble is one friend’s answer. There are 35 bubbles in all.
Fill in the table.
No. of Hours Spent Watching TV
No. of Children
½ hour
1 hour
1½ hour
2 hours
More than 2 hours
Page 180 — the table to fill in.
Answer
Go through the notebook one speech bubble at a time and put a mark against the right row. Here is the finished table.
No. of Hours Spent Watching TV
No. of Children
1/2 hour
9
1 hour
13
1 1/2 hour
7
2 hours
3
More than 2 hours
3
Total
35
Do it like this, step by step.
Make five rows first — one for each answer that appears: 1/2 hour, 1 hour, 1 1/2 hour, 2 hours, more than 2 hours.
Start at the first bubble on the top left and read it. It says 1 hr. Put one mark in the "1 hour" row.
Move to the next bubble and do the same. Work left to right, row by row, so you never miss a face or count one twice.
Count the marks in each row and write the number.
Add up the five numbers. They must come to 35, because 35 friends were asked.
Why it happens: 1 hour, 1 1/2 hours, 2 hours and 2 1/2 hours are all bigger than 1/2 hour. So every child in those four rows watches more than half an hour.
Check it yourself the short way: 35 children in all, and 9 of them watch exactly half an hour. 35 − 9 = 26 ✓
Q3.
How many children watch TV for less than two hours?
Answer
29 children.
Find the rows that are smaller than 2 hours. They are 1/2 hour, 1 hour and 1 1/2 hour.
Add those three counts.
9 + 13 + 7 = 22 + 7 = 29 children
Why it happens: "Less than two hours" does not include the children who watch for exactly 2 hours. It also does not include the 2 1/2 hour children, because 2 1/2 is more than 2.
Check it yourself: The children left out are the 3 who watch 2 hours and the 3 who watch more than 2 hours. 29 + 3 + 3 = 35 ✓
Q4.
The number of children who watch TV for more than two hours is ________.
Answer
The number of children who watch TV for more than two hours is 3.
In the notebook, three friends answered 2 1/2 hr. Two and a half hours is more than two hours, so these three children go in the last row of the table.
Children who said 2 1/2 hr = 3
Careful: Do not put the three children who said exactly 2 hr in this row. Two hours is not more than two hours.
Q5.
More children watch TV for two hours than half an hour. (True/False)
Answer
False.
Read the two rows. Two hours → 3 children. Half an hour → 9 children.
Compare. 3 is smaller than 9.
Children who watch for 2 hours = 3 Children who watch for 1/2 hour = 9 3 < 9, so the statement is False
Why it happens: The statement claims the 2-hour group is the bigger one. It is actually the smaller one. Six fewer children watch for two hours than for half an hour (9 − 3 = 6).
Tip: For a True/False question about data, always find the two numbers first and write them down. Then compare. Never guess from the look of the picture.
Q6.
Can watching TV for a long time be harmful to the eyes?
Answer
Yes, it can. Watching a screen for a long time without a break tires the eyes.
Here is what happens and what helps.
When we stare at a screen we blink less. Blinking spreads water over the eye, so blinking less makes the eyes feel dry and itchy.
The eyes stay focused at one distance for a long time. The tiny muscles inside the eye get tired, and the head may start to ache.
Watching in a dark room or sitting very close makes it worse.
Simple rules that help:
After every 20 minutes, look at something far away — a tree, the sky — for a slow count of 20.
Sit at least 3 metres away from a TV, about the length of a school bench and a half.
Keep a light on in the room. Do not watch in the dark.
Play outside every day. Looking at far-away things is rest for the eyes.
Look at our own data: 3 of the 35 friends watch TV for more than 2 hours a day. That is a long time for a pair of eyes with no break. Those three friends could try the 20-minute rule.