Question

A bottle contains 7.650 litre milk. Neha used 500 ml milk to prepare coffee. How much milk is left with her? 

a) 7.150 litre

b) 2.650 litre

c) 7 litre

Q30: Convert these unlike decimals to like decimals: 4.5 , 12.32 , 6.210 

a) 4.5 , 12.320 , 6.21

b) 4.500 , 12.320 , 6.210

c) 4.500 , 12.32 , 6.21

Q31: 5 mm = ________ cm 

a) 5.0

b) 0.05

c) 0.5

Q32: 47 grams = _________ kg 

a) 0.47

b) 0.047

c) 470.0

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Answer 1

GIVEN:-

• A bottle contains 7.650 litre milk. Neha used 500 ml milk to prepare coffee. How much milk is left with her?

TO FIND:-

• Quantity of milk with neha.

SOLUTION:-

Hey mate! As we know the total quantity and the quantity used , we will simply subtract 500 from 7.650

• =>7.650-500=milk left

• =>7.150 (Required answer)

Option (A)

GIVEN:-

• Convert these unlike decimals to like decimals: 4.5 , 12.32 , 6.210

ANSWER:-

Option (b)

• 4.500 , 12.320 , 6.210 (Required answer)

hey mate! As the decimal number 6.210 has 3 numbers after point we will make the rest 2 also to thousandth by adding zero (0).

GIVEN:-

• 5 mm = ________ cm 

ANSWER:-

Option (C)

• 0.5 cm (Required answer)

As,

• 1mm=1/10 cm
• :.5mm=5×1/10 cm
• =>0.5 cm

GIVEN:-

• 47 grams = _________ kg 

ANSWER:-

Option (b)

• 0.047 kg (Required Answer)

As, 1g=1/1000 kg

• 47g=47×1/1000kg
• =>47/1000kg
• =>0.047kg

hope it helped!

Answer 2

$\bold\red{Solution 1}$

To find :-

How much milk is left with her? 

Given :-

• A bottle contains 7.650 litre milk

• Neha used 500 ml milk

=> Now we subtract 500 ml milk from 7.650 litre milk . We get 7.150 litre

So Option A is the required answer.

$\bold\red{Solution 2 }$

To find :-

5 mm = ________ cm 

As we know that 1 mm = $\bold{\frac{1}{10}}$

So 5mm = 5 × $\bold{\frac{1}{10}}$ = 0.5 cm

Main Answer = OPTION C

$\bold\red{Solution 3}$

To find :-

47 grams = _________ kg 

1 gram = $\bold{\frac{1}{1000}}$

So, 47 gram = 47 ×$\bold{\frac{1}{1000}}$

Hence 47 gram = 0.047 kilogram