1. On Sunday, people went to the Zoo = 845 On Monday, people went to the Zoo = 169 Number of decrease in the people = 845 – 169 = 676 Decrease percent = 676/845×100 = 80% Hence decrease in the people visiting the Zoo is 80%. Class 8 Maths Chapter 8 Exercise 8.2 Solution in Video for more answers vist tRead more

    On Sunday, people went to the Zoo = 845
    On Monday, people went to the Zoo = 169
    Number of decrease in the people = 845 – 169 = 676
    Decrease percent = 676/845×100 = 80%
    Hence decrease in the people visiting the Zoo is 80%.

    Class 8 Maths Chapter 8 Exercise 8.2 Solution in Video

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-8/maths/chapter-8/

    See less
    • 8
  2. Let original salary be ₹ 100. Therefore New salary i.e., 10% increase = 100 + 10 = ₹ 110 ∵ New salary is ₹ 110, when original salary = ₹ 100 ∴ New salary is ₹ 1, when original salary = 100/110 ∴ New salary is ₹ 1,54,000, when original salary = 100/110 x 154000 = ₹1,40,000 Hence original salary is ₹Read more

    Let original salary be ₹ 100.
    Therefore New salary i.e., 10% increase = 100 + 10 = ₹ 110
    ∵ New salary is ₹ 110, when original salary = ₹ 100
    ∴ New salary is ₹ 1, when original salary = 100/110
    ∴ New salary is ₹ 1,54,000, when original salary = 100/110 x 154000 = ₹1,40,000
    Hence original salary is ₹ 1,40,000.

    Class 8 Maths Chapter 8 Exercise 8.2 Solution in Video

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-8/maths/chapter-8/

    See less
    • 7
  3. Number of people who like cricket = 60% Number of people who like football = 30% Number of people who like other games = 100% – (60% + 30%) = 10% Now Number of people who like cricket = 60% of 50,00,000 = 60/100 x 50,00,000 = 30,00,000 And Number of people who like football = 30% of 50,00,000 = 30/1Read more

    Number of people who like cricket = 60%
    Number of people who like football = 30%
    Number of people who like other games = 100% – (60% + 30%) = 10%
    Now Number of people who like cricket = 60% of 50,00,000
    = 60/100 x 50,00,000 = 30,00,000
    And Number of people who like football = 30% of 50,00,000
    = 30/100 x 50,00,000 = 15,00,000
    ∴ Number of people who like other games = 10% of 50,00,000
    = 10/100 x 50,00,000 = 5,00,000
    Hence, number of people who like other games are 5 lakh.

    Class 8 Maths Chapter 8 Exercise 8.1 Solution in Video

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-8/maths/chapter-8/

    See less
    • 7
  4. Let her money in the beginning be ₹ x. According to question, x-75% of x=600 ⇒ x-75/100 X x=600 ⇒ x-(3/4)x = 600 ⇒ x (1- 3/4) = 600 ⇒ x(4-3/4) = 600 ⇒ x = 600 x 4 = ₹ 2400 Hence the money in the beginning was ₹ 2,400. Class 8 Maths Chapter 8 Exercise 8.1 Solution in Video for more answers vist to: hRead more

    Let her money in the beginning be ₹ x.
    According to question,
    x-75% of x=600

    ⇒ x-75/100 X x=600
    ⇒ x-(3/4)x = 600
    ⇒ x (1- 3/4) = 600
    ⇒ x(4-3/4) = 600
    ⇒ x = 600 x 4 = ₹ 2400
    Hence the money in the beginning was ₹ 2,400.

    Class 8 Maths Chapter 8 Exercise 8.1 Solution in Video

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-8/maths/chapter-8/

    See less
    • 7
  5. Let total number of matches be x According to question, 40% of total matches = 10 ⇒ 40% of x = 10 ⇒ 40/100 X x ⇒ x=10x100/40 = 25 Hence, the total number of matches are 25. Class 8 Maths Chapter 8 Exercise 8.1 Solution in Video for more answers vist to: https://www.tiwariacademy.com/ncert-solutions/Read more

    Let total number of matches be x
    According to question, 40% of total matches = 10
    ⇒ 40% of x = 10 ⇒ 40/100 X x ⇒ x=10×100/40 = 25
    Hence, the total number of matches are 25.

    Class 8 Maths Chapter 8 Exercise 8.1 Solution in Video

    for more answers vist to:
    https://www.tiwariacademy.com/ncert-solutions/class-8/maths/chapter-8/

    See less
    • 7