Jugs and Mugs – Class 4

CBSE CLASS 4 MATHEMATICS
Jugs and Mugs – Chapter 7/ Model Questions.
Answer the following:

1. Neethu has to take 3 injections in a day for 5 days. One injection gives 5 ml of the medicine to your body.
   a) How much medicine will she need for one day?
   b) How much medicine in all for 5 days?
2. List things we use more than one litre at a time?
3. Amina’s water bottle holds one litre of water. She drank 250 ml of water and her friend Govind drank 150 ml. How much water is left in her bottle?
4. Yusuf runs a tea shop. For making a glass of tea he uses 20 ml of milk. Yesterday he made 100 glasses of tea. How much milk did he use?
5. Radha’s grandma was ill. The doctor gave her a bottle with 200 ml of medicine. She has to take the medicine every morning for 10 days. How many millilitres of medicine does she have to take every morning?
6. The water used in one day by a family of 5 people is given below.
   Cooking and drinking = 30litre
   Washing clothes = 40 litre
   Cleaning pots, pans = 20litre
   Bathing = 75litre.
   Find the total water used by them?
7. If one litre of water is wasted in one hour, find out how much water is wasted in a day? In a week? In a month? In a year?
8. A bottle can hold 3 litres of water. How much water will be there in 5 such bottles?
9. Five small glasses of water are required to fill one bottle. How much glasses of water are required to fill such 5 bottles?
10. Bottle A can holds 34 litres of water and bottle B holds half of bottle A. How much water required to fill bottle B?

ANSWERS:

1. a) Quantity of medicine in one injection = 5 ml
   Quantity of medicine in 3 injections = 3 x 5 = 15 ml
   So medicine needed for 5 days = 15 ml
   b) Medicine needed for 5 days = 15 x 5 = 75 ml
2. For bathing, For washing clothes, For cleaning utensils, For washing our vehicles etc…..
3. Water holds in the bottle = 1 litre = 1000 ml
   Water drank by Amina and Govind = 250 + 150 = 400ml.
   Water left in her bottle = 1000 – 400 = 600 ml.
4. Milk used for making one glass of tea = 20 ml
   Milk used for making 100 glasses of tea = 100 x 20 = 2000 ml = 2 litre.
5. Quantity of medicine in the bottle for 10 days = 200 ml
   Quantity of medicine taken by her in one day = 200/10 = 20 ml.
6. Total = 30 + 40 + 20 + 75 = 165 litre.
7. Water wasted in one hour = 1 litre
   Water wasted in one day = 24 x 1 = 24 litre
   Water wasted in one week = 24 x 7 = 168 litre
   Water wasted in one month = 24 x 30 = 720 litre
   Water wasted in one year = 720 x 12 = 8640 litre.
8. Water can holds in one bottle = 3 litre
   Quantity of water that can hold in 5 such bottles = 3 x 5 = 15 litre
9. Water required to fill one bottle = 5 glasses
   Water required to fill five such bottles = 5 x 5 = 25 glasses.
10. Water holds in bottle A = 34 litres
    Water holds in bottle B = Half of 34 = 17 litres.