Page 169 - Math Genius C2

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MAths connect Logical Thinking

A doctor gives a bottle of cough syrup of 100 mL to Soni and Cross-Curricular Learning
advises her to take 5 mL of the medicine thrice a day for five days.
1. How much medicine will Soni take in
(a) 1 day? _____ (b) 5 days? _____
2. How much medicine will be left after 5 days? _____
3. Suppose Soni forgot the doctor’s advice and took 10 mL medicine
twice a day. How much medicine would be left after 3 days? _____

Practice Time 9F

1. Add the following.
(a) (b) (c) (d) L mL

4 3 L 5 6 L 3 7 6 mL 2 2 8 3
+ 3 7 L + 4 5 L + 2 6 8 mL + 2 1 9 7

2. Subtract the following.

(a) (b) (c) (d) L mL

2 6 L 7 0 mL 3 8 0 mL 3 8 0 0
– 1 8 L – 1 9 mL – 2 6 5 mL – 1 5 4 6

3. Solve the following story problems. One has been done for you.
(a) Mohan bought 20 L of milk on Monday and 25 L on Tuesday. 2 5 L

On which day did he buy more milk and by how much? – 2 0 L

Answer: Mohan bought 5 L more milk on Tuesday. 5 L

(b) A pack of kesar-badam milk holds 300 mL. Another pack
holds 500 mL. How much kesar-badam milk is in both the
packs?

Answer: _____________________
(c) The fuel tank of a car had 12 L of petrol. To fill the tank
completely, 8 L more petrol was filled in it. What is the

capacity of the fuel tank of the car?
Answer: _____________________

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