Page 209 - classs 6 a_Neat

8. The number of merit certificates given to students from class Ill to VIII are as follows 3. What will happen to the area of a square if its side is:
a. doubled b. tripled c. halved
Classes Merit certificates 4. Two plots of land have the same perimeter. One is a square with a side of 60 m, while the other is a

3 50 rectangle whose breadth is 12 m. Which plot of land has the greater area and by how much?
4 60 5. The floor of a school auditorium is fully carpeted. There are 40 carpets in the auditorium, each

measuring 25 m × 12.5 m. What is the total area of the floor?
5 70 6. Two rooms of floor sizes 15 m × 12 m and 10m × 8 m are to be tiled with square tiles of side 50 cm.
6 150 How many tiles will be needed in all?
7 90 7. Find the area of the shaded portion in the two figures given below.
8m
12m
a.
b.
8 80
Represent the information on a bar graph by taking a suitable scale. Represent each class 5m
by a different colour bar.
How many students in total received a merit card? 7m
9. The following are the number of tickets sold for a popular Harry Potter film at a multiplex. 18m 2 5m 8m
Friday 400
Saturday 500
Sunday 350
Monday 200
Tuesday 150 8. Calculate the area and perimeter of the following figures.
Wednesday 100 a. 1m b.
Thursday 250 10m
Represent this information on a bar graph. Take 1 cm = 50 tickets. Answer the following.
Answer the following. 2m
a. On which day were the least tickets sold?
b. On which day was the houseful board put?
c. How many tickets were sold in all during the week? 10m
10. The school transport office conducted a survey to find out the mode of transport used by Class 6 10m
students to come to school. Represent the information on a bar graph. 6m 18m

School bus 100 2m 2m
Private bus 60
Car 40 9. The number of students in five different sections of Class VI are given below. Express the data with the help
Cycle 20 of a bar graph.
Walking 20
Scooter 10 Section A B C D E

Number of
Scale 1 cm = 10 students 35 50 55 40 45
Answer the following questions. students
a. How many students do physical exercise on the way to school? 10. A shopkeeper sold the following number of packets of dry fruits during a week.
b Which is the most commonly used mode of transport? Monday 400
c. How many students are there in Class 6 of this school? Tuesday 500
EXERCISE 15-C Wednesday 350
Thursday
1. Find the perimeter of the following figures. Friday 600
a. A square whose side is 11 cm. Saturday 700
b A rectangle whose dimensions are - £. = 12 cm, b = 9 cm. Sunday 650
c. A triangle whose sides are 8 cm, 6 cm and 5 cm. Use 1 box to represent 100 packets of dry fruits and ½ box to represent 50 packets of dry fruits. Draw a picto-
2. The area of a rectangle is 108 cm2. If its breadth is 9 cm, find its length. graph.