Term 1 · Class 7 Maths · Chapter 6

Samacheer Class 7 Maths - Information Processing Intext Questions

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Chapter-wise textbook exercise answers for Information Processing Intext Questions with validation-aware solutions.

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Q.1Observe the pictures and answer the following. (i) Find all the possible routes from house to school via fire station. (ii) Find all the possible routes between central park and school with distance. Mention the shortest route? (iii) Calculate the shortest distance between bank and school.v
Solution

(i) (a) House ➝ Fire station ➝ Library ➝ Central Park ➝ Hotel ➝ Fruit shop ➝ School.
(b) House ➝ Fire station ➝ Library ➝ Fruit shop ➝ School.
(c) House ➝ Fire station ➝ Library ➝ School.
(ii) Possible routes between Central park and school and their distances are
(a) School ➝ Fruit shop ➝ Hotel ➝ Central park.
Distance ➝ (150 + 300 + 100)m = 550 m
(b) School ➝ Fruit shop ➝ Library ➝ Central park Distance ➝(150 + 100 + 200)m
= 450 m
(c) School ➝ Library ➝ Central park
Distance = (20 + 200 m)
= 220 m
(d) School ➝ Library ➝ Fire station ➝ House ➝ central park Distance = (20 + 50 + 300 + 150) m
= 520 m
(e) School ➝ Emit shop ➝ Hotel ➝ Bank ➝ House ➝ Central park
Distance ➝ (150 + 300 + 150 + 200 + 150) m
= 950 m
(f) School ➝ fruit shop ➝ Hotel ➝ Bank ➝ House ➝ Fire station ➝ Library ➝ central park
Distance = (150 + 300 + 150 + 200 + 300 + 50 + 200)m = 1350 m
∴ Route (c) is the shortest path (i.e.,) School ➝ Library ➝ Central park
(iii) Shortest distance between school and Bank is calculated as follows Bank ➝ Hotel ➝ Central park ➝ Library ➝ school.
Distance = (150 + 100 + 200 + 20)m
= 470 m

Answer:

(i) (a) House ➝ Fire station ➝ Library ➝ Central Park ➝ Hotel ➝ Fruit shop ➝ School.
(b) House ➝ Fire station ➝ Library ➝ Fruit shop ➝ School.
(c) House ➝ Fire station ➝ Library ➝ School.
(ii) Possible routes between Central park and school and their distances are
(a) School ➝ Fruit shop ➝ Hotel ➝ Central park.
Distance ➝ (150 + 300 + 100)m = 550 m
(b) School ➝ Fruit shop ➝ Library ➝ Central park Distance ➝(150 + 100 + 200)m
= 450 m
(c) School ➝ Library ➝ Central park
Distance = (20 + 200 m)
= 220 m
(d) School ➝ Library ➝ Fire station ➝ House ➝ central park Distance = (20 + 50 + 300 + 150) m
= 520 m
(e) School ➝ Emit shop ➝ Hotel ➝ Bank ➝ House ➝ Central park
Distance ➝ (150 + 300 + 150 + 200 + 150) m
= 950 m
(f) School ➝ fruit shop ➝ Hotel ➝ Bank ➝ House ➝ Fire station ➝ Library ➝ central park
Distance = (150 + 300 + 150 + 200 + 300 + 50 + 200)m = 1350 m
∴ Route (c) is the shortest path (i.e.,) School ➝ Library ➝ Central park
(iii) Shortest distance between school and Bank is calculated as follows Bank ➝ Hotel ➝ Central park ➝ Library ➝ school.
Distance = (150 + 100 + 200 + 20)m
= 470 m

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Q.1A tetromino is a shape obtained by …… squares together.v
Solution

4

Answer:

4

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Q.2Draw a tetromino which passes symmetry ……..v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.1 1
SamacheerKalvi.Guru

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.1 1
SamacheerKalvi.Guru

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Q.4Shade the figure completely, by using five tetrominoes shapes only once. Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.1 4v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.1 5

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.1 5

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Q.1Make a model of a fish using the given tetromino shapes Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 1 Complete the given rectangle using the given tetromino shapes.v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 2

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 2

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Q.3Shade the figure completely, by using five Tetromino shapes only once. Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 7v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 8

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 8

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Q.4Using the given tetrominoes with numbers on it complete the 4 × 4 magic square? Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 9v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 10

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 10

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Q.5Find the shortest route to Vivekanandar Memorial Hall from the Mandapam using the given map. Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 11v
Solution

Possible routes from Mandapam to Vivekandar Memorial are
route 1:
(a) Mandapam ➝ Pullivasal Island ➝ Krusadai Island ➝ Vivekanandar Memorial Hall.
Distance = 6 Km + 2 Km + 1.5 Km = 9.5 Km
route 2:
(b) Mandapam ➝ Krusadai Island ➝ Vivekanandar Memorial Hall.
Distance = 7 Km + 1.5 Km = 8.5 Km
8.5 km < 9.5 km
∴ Shortest route : Mandapam ➝ Krusadai Island ➝ Vivekanandar Memorial Hall.
Challenge Problems

Answer:

Possible routes from Mandapam to Vivekandar Memorial are
route 1:
(a) Mandapam ➝ Pullivasal Island ➝ Krusadai Island ➝ Vivekanandar Memorial Hall.
Distance = 6 Km + 2 Km + 1.5 Km = 9.5 Km
route 2:
(b) Mandapam ➝ Krusadai Island ➝ Vivekanandar Memorial Hall.
Distance = 7 Km + 1.5 Km = 8.5 Km
8.5 km < 9.5 km
∴ Shortest route : Mandapam ➝ Krusadai Island ➝ Vivekanandar Memorial Hall.
Challenge Problems

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Q.6Fill in 4 × 10 rectangle completely, using all the five tetrominoes twice.v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 50
(more possible ways are there)

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 50
(more possible ways are there)

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Q.7Fill in 8 × 5 rectangle completely, using all the five tetrominoes twice.v
Solution

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 51
(more possible way are there)

Answer:

Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 51
(more possible way are there)

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Q.8Observe the picture and answer the following. (i) Find all the possible routes from A to D. (ii) Find the shortest distance between E and C. (iii) Find all the possible routes between B and F with distance. Mention the shortest route. Samacheer Kalvi 7th Maths Term 1 Chapter 6 Information Processing Ex 6.2 52v
Solution

(i) All possible routes from A to D are :
(a) A ➝ G ➝ F ➝ E ➝ D
(b) A ➝ G ➝ D
(c) A ➝ B ➝ C ➝ D
(d) A ➝ B ➝ D
(ii) Distance between E and C are
(a) Route 1: E ➝ D ➝ C
Distance: 120 m + 200 m = 320 m.
(b) Route 2: E ➝ D ➝ B ➝ C
Distance = 120 + 100 m + 120 m
= 340 m.
∴ Shortest distance is 320 m.
(iii) All possible routes between B and F are :
(a) Route 1: B ➝ A ➝ G ➝ F
Distance = 250 m + 100 m + 150 m = 600 m.
(b) Route 2: 2 ➝ D ➝ E ➝ F
Distance = 100 m + 120 m + 300 m
= 520 m.
(c) Route 3: B ➝ D ➝ G ➝ F
Distance = 100 m + 200 m + 150 m
= 450 m.
(d) Route 4: B ➝ C ➝ D ➝ E ➝ F
Distance = 120 m + 200 m + 120 m + 300 m
= 740 m.
We find that Route 3 is shortest.
ie B ➝ D ➝ G ➝ F is the shortest route.
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Answer:

(i) All possible routes from A to D are :
(a) A ➝ G ➝ F ➝ E ➝ D
(b) A ➝ G ➝ D
(c) A ➝ B ➝ C ➝ D
(d) A ➝ B ➝ D
(ii) Distance between E and C are
(a) Route 1: E ➝ D ➝ C
Distance: 120 m + 200 m = 320 m.
(b) Route 2: E ➝ D ➝ B ➝ C
Distance = 120 + 100 m + 120 m
= 340 m.
∴ Shortest distance is 320 m.
(iii) All possible routes between B and F are :
(a) Route 1: B ➝ A ➝ G ➝ F
Distance = 250 m + 100 m + 150 m = 600 m.
(b) Route 2: 2 ➝ D ➝ E ➝ F
Distance = 100 m + 120 m + 300 m
= 520 m.
(c) Route 3: B ➝ D ➝ G ➝ F
Distance = 100 m + 200 m + 150 m
= 450 m.
(d) Route 4: B ➝ C ➝ D ➝ E ➝ F
Distance = 120 m + 200 m + 120 m + 300 m
= 740 m.
We find that Route 3 is shortest.
ie B ➝ D ➝ G ➝ F is the shortest route.
About Us
Privacy Policy
Disclaimer
Contact Us
Facebook
Twitter
Pinterest
LinkedIn
Copyright © 2026 Samacheer Kalvi Guru

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