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प्रश्न
Neetu has to take 3 injections a day for 5 days. One injection gives 5 mL of the medicine to your body.
- How much medicine will she need for one day?
- How much medicine in all for 5 days?
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उत्तर
(a) One injection contains 5 mL of medicine
She requires 3 injections a day
So she needs medicine in one day = 5 mL × 3 = 15 mL of medicine.
(b) In one day she is getting 15 mL of medicine.
So, in 5 days medicine in all = 15 mL × 5 = 75 mL.
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संबंधित प्रश्न
Look at these pictures. Now look for some other things we get in packets or bottles like these. Make your own list.
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| Packet | How many mL or L? |
| Milk | 500 mL |
Look at the buckets, mugs, glasses and other things in your house. Guess how much water each can hold. Check if your guess is right by using your measuring bottle.
| My Guess | My Measure | |
| Mug | ||
| Glass | ||
| Pot | ||
List things we use more than one litre at a time.
- Water for taking bath.
- __________________
- __________________
- __________________
Chelannur village has a milk society. Geetha and Ammini went there to buy 4 litres of milk. But the man could not find the one-litre measure. He had only a 3 litre and a 5-litre bottle with him. But he gave them exactly 4 litres of milk. Explain how he did this.
 |
 |
Whose jug holds more water?
Now look at the buckets in your house.
Guess how many litres of water they can hold.
Use a 1 litre bottle and check if your guess is right for all the buckets.
| Bucket | My guess | My measure |
| Bucket 1 | ||
| Bucket 2 | ||
| Bucket 3 |
Mark A, B, C on the right hole in the picture.
Sunaina and Jaspreet brought different vessels from the kitchen. They had a 
jug, a 
glass, a 
mug, a 
pot and a 
bowl.
They filled each of these with a 
cup.
 |
 |
 |
 |
 |
- Guess which vessel holds the least water.
- Which vessel holds the most water?
Now, you collect different vessels from your kitchen.
Use the same cup to fill each of them.
Count the number of cups of water each of them can hold.
First guess and then do it.
| The vessel you used | Cups of water to fill it |
|
______ |
| ______ | ______ |
| ______ | ______ |
Anil is a milkman. He gives the same amount of milk at Rani's house every day. He uses a 
mug three times to fill Rani's milk pot 
.
One day Rani's mother gave her a different 
pot to take milk. Every day Rani's pot would fill to the top. But today Rani found that the pot 
was not filled completely.
Do you think Anil has given Rani less milk? Help her.
Guess and then find out:
How many mugs of water do you use to take a bath?
