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Chapter: 8th Maths : Chapter 7 : Information Processing

Exercise 7.4

8th Maths : Chapter 7 : Information Processing : Exercise 7.4 : Text Book Back Numerical problems, Exercises Questions with Answers, Solution

Exercise 7.4

 

1. Find the best buy of the following purchases:

(i) A pack of 5 chocolate bars for 175 or 3 chocolate bars for 114?

(ii) Basker buy 1½ dozen of eggs for 81 and Aruna buy 15 eggs for 64.50?

Solution:

(i)


Best buy is a pack of 5 chocolate bars for  ₹  175.

(ii)


Best buy is 15 eggs for  ₹ 64.50

 

2. Using the given picture find the total special offer price of fresh sweets and bakery products to buy ½ kg laddu, 1 kg cake, 6 pockets of bread.


Solution:


 

3. Using the given picture prepare a price list.

Suppose you plan to buy 1½ kg of apple, 2 kg of pomegranate, 2 kg of banana, 3 kg of mango, ½ kg of papaya, 3 kg of onion, 1½ kg of tomato, and 1 kg of carrot in shop 1, how much will you save compared to shop 2.


Solution:


Price in shop 2 − Shop 1 = 715 − 675.75

=  ₹  39.25

We can save  ₹  39.25 in shop 1 compared to shop 2.

 

4. You want to buy some grocery items as per your shopping list that are given in the picture with their price. Also you have a bag that capacity of carrying 7 kg. Using weight ratio approach tabulate to find the total price and how much can you buy more grocery items within your budget of 1000 and not exceeding 7 kg.



Shopping list

1.  2 kg of red chilli

2. 2 kg of coriander

3. 1 kg of garlic

4. 1 kg of tamarind

5. 2 kg of toor dal

Solution:


 

Objective Type Questions

 

5. Online or television advertisements influence people on spending decisions by

(a) using special music

(b) making them think that they need the item

(c) using attractive pictures

(d) all the above

[Answer: (d) all the above]

 

6. When I go shopping, I will buy

(a) something that looks attractive

(b) something my friend has

(c) something that I need to purchase

(d) the first thing I see in the store

[Answer: (c) something that I need to purchase]

 

7. The best shopping choice is to

(a) shop at brand name stores always buy

(b) compare the choices before buying

(c) the same thing my friends bought

(d) buy at a regular shop always

[Answer: (b) compare the choices before buying]

 

Answer:

Exercise 7.4

1. (i) 5 Chocolate bars for ₹ 175b (ii) 15 eggs for ₹ 64.50

2. ₹ 634

3. ₹ 39.25

4. ₹ 809

5. (d) all the above

7. (c) something that I need to purchase

 (b) Compare the choices before buying


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8th Maths : Chapter 7 : Information Processing : Exercise 7.4 | Questions with Answers, Solution | Information Processing | Chapter 7 | 8th Maths


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