1. (a) 30 minutes to 1.5 hour 1.5 hours = 1.5 x 60 = 90 minutes [∵ 1 hour = 60 minutes] Now, ratio of 30 minutes to 1.5 hour = 30 minutes : 1.5 hour ⇒ 30 minutes : 90 minutes = 30/90 = 1/3 1:3 (b) 40 cm to 1.5 m 1.5 m = 1.5 x 100 cm = 150 cm [∵ 1 m = 100 cm] Now, ratio of 40 cm to 1.5 m = 40 cm : 1.5 mRead more

    (a) 30 minutes to 1.5 hour
    1.5 hours = 1.5 x 60 = 90 minutes [∵ 1 hour = 60 minutes]
    Now, ratio of 30 minutes to 1.5 hour = 30 minutes : 1.5 hour
    ⇒ 30 minutes : 90 minutes = 30/90 = 1/3 1:3

    (b) 40 cm to 1.5 m
    1.5 m = 1.5 x 100 cm = 150 cm [∵ 1 m = 100 cm]
    Now, ratio of 40 cm to 1.5 m = 40 cm : 1.5 m
    ⇒ 40 cm : 150 cm = 40/150 = 4/15 = 4:15

    (c) 55 paise to Re. 1
    ₹ 1 = 100 paise
    Now, ratio of 55 paise to ₹1 = 55 paise : 100 paise
    ⇒ 55/100 = 11:20

    (d) 500 ml to 2 litters
    2 litres = 2 x 1000 ml = 2000 ml [∵1 litre = 1000 ml]
    Now, ratio of 500 ml to 2 litres = 500 ml : 2 litres
    ⇒ 500 ml : 2000 ml = 500/2000 = 1/4 = 1:4

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

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  2. (a) Ratio of 81 to 108 = 81/108 = 3/4 = 3:4 (b) Ratio of 98 to 63 = 98/63 = 14/9 = 14:9 (c) Ratio of 33 km to 121 km = 33/121 = 3:11 (d) Ratio of 30 minutes to 45 minutes = 30/45 = 2/3 =2:3 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

    (a) Ratio of 81 to 108 = 81/108 = 3/4 = 3:4
    (b) Ratio of 98 to 63 = 98/63 = 14/9 = 14:9
    (c) Ratio of 33 km to 121 km = 33/121 = 3:11
    (d) Ratio of 30 minutes to 45 minutes = 30/45 = 2/3 =2:3

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

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  3. We know that, Speed = Distance/Time Speed of Hamid = 9m/1h= 9 km/h and Speed of Akhtar = 12m/1h- 12km/h Ratio of speed of Hamid to that of speed of Akhtar = 9/12 = 3/4 = 3:4 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

    We know that, Speed = Distance/Time
    Speed of Hamid = 9m/1h= 9 km/h and Speed of Akhtar = 12m/1h- 12km/h
    Ratio of speed of Hamid to that of speed of Akhtar = 9/12 = 3/4 = 3:4

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

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  4. (a) Ratio of number of triangle to that of circles = 3/2 = 3:2 (b) Ratio of number of squares to all figures = 2/7 = 2:7 (c) Ratio of number of circles to all figures = 2/7 = 2:7 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

    (a) Ratio of number of triangle to that of circles = 3/2 = 3:2

    (b) Ratio of number of squares to all figures = 2/7 = 2:7

    (c) Ratio of number of circles to all figures = 2/7 = 2:7

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

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  5. Total number of students = 30 Number of students like football = 6 Number of students like cricket = 12 Thus number of students like tennis = 30 – 6 – 12 = 12 (a) The ratio of students like football that of tennis = 6/12 = 1/2 =1:2 (b) The ratio of students like cricket to that of total students = 1Read more

    Total number of students = 30
    Number of students like football = 6
    Number of students like cricket = 12
    Thus number of students like tennis = 30 – 6 – 12 = 12

    (a) The ratio of students like football that of tennis = 6/12 = 1/2 =1:2

    (b) The ratio of students like cricket to that of total students = 12/30 = 2/5 = 2:5

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-12/

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