Question

answer this question​

Answer 1

Answer:

2.

$2 \frac{1}{5}$

Step-by-step explanation:

4 is whole number and so is 2

so we subtract both first

4 - 2 = 2

then 2/5 and 1/5 we subtract

it's 2/5 - 1/5

which is 1/5

now we put hose together

$2 \ \frac{1}{5}$

Answer 2

Question 1 :

The school canteen Charges Rs. 20 for lunch and Rs. 4 for milk for each day. How much money do you spend in 5 days on these things ?

★ Answer :

• For Lunch → 20 Rs.
• For Milk → 4 Rs.

Total Money for one day → 20 + 4 = 24 Rs.

Now, Money for 5 days = 24 × 5 = 120 Rs.

$\dashrightarrow\:\: \underline{ \boxed{\sf Money \: Spend \: in \: 5 \: days = 120 \: Rs }}$

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Question 2 :

Write all the prime numbers less than 15 ?

★ Prime Numbers ★

The number which are divisible by 1 or itself are called prime numbers.

Examples :- { 2 , 3 , 5 , 7 , ········ }

★ Answer : 2 ,3 , 5, 7, 11, and 13.

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Question 3 :

Find the HCF of 20 , 28 and 36 .

★ Answer :

20 = 2 × 2 × 5

28 = 2 × 2 × 7

36 = 2 × 2 × 3 × 3

So, HCF will be 2 × 2 = 4

$\dashrightarrow\:\: \underline{ \boxed{\sf Highest \: common \: factor = 2 }}$

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Question 4 :

Find $\sf 4 \dfrac{2}{5} - 2 \dfrac{1}{5}$

★ Answer :

Converting into proper fraction from mixed one.

Then,

$:\implies\sf \dfrac{22}{5} - \dfrac{11}{5}$

$:\implies\sf \dfrac{22 - 11}{5}$

$:\implies \sf \pink {\dfrac{ 11}{5} }$

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Question 5 :

★ Answer :

• Area of Rectangular piece of cardboard = 36 cm²

• Length of rectangular piece of cardboard = 9 cm

Then,

Putting up the respective values, we get -

$\dashrightarrow\:\:\sf Area = L \times B$

$\dashrightarrow\:\:\sf 36 = 9 \times B$

$\dashrightarrow\:\:\sf \dfrac{36}{9} = Breadth$

$\dashrightarrow\:\: \underline{ \boxed{ \sf Breadth \: of \: rectangular \: cardboard = \purple{ 4 \: {cm}} }}$

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Question: 6

Find the ratio of 90 cm to 1.5 m

★ Answer :

Converting m into cm

$\therefore \sf 1 \: m = 100 \: cm$

$\implies \sf (1.5 \times 100) \: cm$

$\implies \sf 150 \: cm$

Now,

$\dashrightarrow\:\:\sf Ratio = \dfrac{90}{150}$

$\dashrightarrow\:\:\sf Ratio = \dfrac{9}{15}$

$\dashrightarrow\:\:\sf \pink {Ratio} = \dfrac{3}{5}$

$\dashrightarrow\:\: \underline{ \boxed{ \sf Ratio = 3 : 5 }}$

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Question 7 :

If the cost of a dozen soaps is Rs. 153. 60. What will be the cost of 15 such soaps.

★ Answer :

We know ,

• 1 Dozen Soap = 12 Soaps .

Then,

12 Soaps = 153. 60

So, 1 soap cost will be

$\implies \sf \dfrac{153.60}{12} = 12. 8 \:Rs$

Hence, 15 such soaps will cost

= 12.8 × 15 = 192 Rs.

$\dashrightarrow\:\: \underline{ \boxed{\sf Cost \: of \: 15 \: soaps = 192 \: Rs }}$

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