Choking can be avoided by eating slowly, taking small mouthfuls and chewing food properly before swallowing. Never talk, laugh or run while eating, as it may block the airway. Cutting food into smaller pieces and sitting upright while eating also help prevent choking and ensure the food passes safelRead more
Choking can be avoided by eating slowly, taking small mouthfuls and chewing food properly before swallowing. Never talk, laugh or run while eating, as it may block the airway. Cutting food into smaller pieces and sitting upright while eating also help prevent choking and ensure the food passes safely into the stomach.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 2: Health and Well-being – Chapter 3: The Mystery of Food Extra Questions & Answer:
Some foods last for weeks because they have little or no moisture, making it hard for microbes to grow. Examples are ghee, pickles and dried grains. Others, like bread, milk and fresh vegetables, spoil within days as their moisture content and exposure to air create ideal conditions for microbes toRead more
Some foods last for weeks because they have little or no moisture, making it hard for microbes to grow. Examples are ghee, pickles and dried grains. Others, like bread, milk and fresh vegetables, spoil within days as their moisture content and exposure to air create ideal conditions for microbes to multiply rapidly.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 2: Health and Well-being – Chapter 3: The Mystery of Food Extra Questions & Answer:
We can guess these cube roots: 1331 = 11³ (last digit is 1) 4913 = 17³ 12167 = 23³ 32768 = 32³ By knowing cube values or estimating from digit patterns, we match these cubes to their roots. For instance, 32³ = 32768, so cube root is 32. This helps in quick identification without full factorisation.Read more
We can guess these cube roots:
1331 = 11³ (last digit is 1)
4913 = 17³
12167 = 23³
32768 = 32³
By knowing cube values or estimating from digit patterns, we match these cubes to their roots. For instance, 32³ = 32768, so cube root is 32. This helps in quick identification without full factorisation.
For more NCERT Solutions for Class 8 Mathematics Ganita Prakash Chapter 1 A Square and A Cube Extra Questions & Answer:
How can you avoid choking?
Choking can be avoided by eating slowly, taking small mouthfuls and chewing food properly before swallowing. Never talk, laugh or run while eating, as it may block the airway. Cutting food into smaller pieces and sitting upright while eating also help prevent choking and ensure the food passes safelRead more
Choking can be avoided by eating slowly, taking small mouthfuls and chewing food properly before swallowing. Never talk, laugh or run while eating, as it may block the airway. Cutting food into smaller pieces and sitting upright while eating also help prevent choking and ensure the food passes safely into the stomach.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 2: Health and Well-being – Chapter 3: The Mystery of Food Extra Questions & Answer:
https://www.tiwariacademy.com/class-5-evs-our-wondrous-world-chapter-3/#solutions
See lessWhy do some food items last for weeks and others spoil in just a few days?
Some foods last for weeks because they have little or no moisture, making it hard for microbes to grow. Examples are ghee, pickles and dried grains. Others, like bread, milk and fresh vegetables, spoil within days as their moisture content and exposure to air create ideal conditions for microbes toRead more
Some foods last for weeks because they have little or no moisture, making it hard for microbes to grow. Examples are ghee, pickles and dried grains. Others, like bread, milk and fresh vegetables, spoil within days as their moisture content and exposure to air create ideal conditions for microbes to multiply rapidly.
For more NCERT Solutions for Class 5 EVS Our Wondrous World – The World Around Us Unit 2: Health and Well-being – Chapter 3: The Mystery of Food Extra Questions & Answer:
https://www.tiwariacademy.com/class-5-evs-our-wondrous-world-chapter-3/#solutions
See lessWhich of the following is the greatest? Explain your reasoning. (i) 67³ – 66³ (ii) 43³ – 42³ (iii) 67² – 66² (iv) 43² – 42²
Let’s compare using identities: a³ – b³ = (a–b)(a² + ab + b²) 67³ – 66³ = 1(4489 + 4422 + 4356) = 13267 43³ – 42³ = 1(1849 + 1806 + 1764) = 5419 a² – b² = (a–b)(a + b) 67² – 66² = 1(133) = 133 43² – 42² = 1(85) = 85 So, the greatest is 67³ – 66³ For more NCERT Solutions for Class 8 MathematicRead more
Let’s compare using identities:
a³ – b³ = (a–b)(a² + ab + b²)
67³ – 66³ = 1(4489 + 4422 + 4356) = 13267
43³ – 42³ = 1(1849 + 1806 + 1764) = 5419
a² – b² = (a–b)(a + b)
67² – 66² = 1(133) = 133
43² – 42² = 1(85) = 85
So, the greatest is 67³ – 66³
For more NCERT Solutions for Class 8 Mathematics Ganita Prakash Chapter 1 A Square and A Cube Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/maths/ganita-prakash-chapter-1/
See lessYou are told that 1331 is a perfect cube. Can you guess without factorisation what its cube root is? Similarly, guess the cube roots of 4913, 12167 and 32768.
We can guess these cube roots: 1331 = 11³ (last digit is 1) 4913 = 17³ 12167 = 23³ 32768 = 32³ By knowing cube values or estimating from digit patterns, we match these cubes to their roots. For instance, 32³ = 32768, so cube root is 32. This helps in quick identification without full factorisation.Read more
We can guess these cube roots:
1331 = 11³ (last digit is 1)
4913 = 17³
12167 = 23³
32768 = 32³
By knowing cube values or estimating from digit patterns, we match these cubes to their roots. For instance, 32³ = 32768, so cube root is 32. This helps in quick identification without full factorisation.
For more NCERT Solutions for Class 8 Mathematics Ganita Prakash Chapter 1 A Square and A Cube Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/maths/ganita-prakash-chapter-1/
See lessState true or false. Explain your reasoning. (i) The cube of any odd number is even. (ii) There is no perfect cube that ends with 8. (iii) The cube of a 2-digit number may be a 3-digit number. (iv) The cube of a 2-digit number may have seven or more digits. (v) Cube numbers have an odd number of factors.
(i) False – Odd³ = Odd (e.g., 3³ = 27) (ii) False – 2³ = 8 ends in 8 (iii) True – 4³ = 64 (2-digit → 2-digit), 5³ = 125 (2-digit → 3-digit) (iv) True – 99³ = 970299 (2-digit cube has 6 digits) (v) False – Only cube numbers that are also squares have odd number of factors. Others have even. FoRead more
(i) False – Odd³ = Odd (e.g., 3³ = 27)
(ii) False – 2³ = 8 ends in 8
(iii) True – 4³ = 64 (2-digit → 2-digit), 5³ = 125 (2-digit → 3-digit)
(iv) True – 99³ = 970299 (2-digit cube has 6 digits)
(v) False – Only cube numbers that are also squares have odd number of factors. Others have even.
For more NCERT Solutions for Class 8 Mathematics Ganita Prakash Chapter 1 A Square and A Cube Extra Questions & Answer:
https://www.tiwariacademy.com/ncert-solutions/class-8/maths/ganita-prakash-chapter-1/
See less