Decimals Test

Result

Decimals Test - 14

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is equivalent to $$ \dfrac{77}{100}$$?

A
$$0.00000077$$

B
$$0.0000077$$

C
$$0.77$$

D
$$0.00077$$

Solution

$$ \dfrac{77}{100} = 0.77$$

Option C is correct.
Question 2
1 / -0

Write the following fraction into decimal form:
$$\dfrac{1}{2} $$ =

A
$$0.5$$

B
$$0.008$$

C
$$5.08$$

D
$$5.8$$

Solution

$$\cfrac { 1 }{ 2 } $$
Multiply and divide by 5
$$= \dfrac{5}{10} =0.5$$
Question 3
1 / -0

$$ \dfrac{7}{100}$$ is equal to:

A
$$0.07$$

B
$$0.7$$

C
$$0.0070$$

D
$$0.0007$$

Solution

$$ \dfrac{7}{100} = 0.07$$
Question 4
1 / -0

In which figure does the shaded part represents 0.3?

A

B

C

D

Solution

In figure A,
Total Divisions $$= 10$$
Shaded Divisions $$= 3$$

$$\therefore\ $$ Shaded part $$= \dfrac{3}{10} = 0.3$$

In figure B,
Total Divisions $$= 4$$
Shaded Divisions $$= 1$$

$$\therefore\ $$ Shaded part $$= \dfrac{1}{4} = 0.25$$

In figure C,
Total Divisions $$= 4$$
Shaded Divisions $$= 1$$

$$\therefore\ $$ Shaded part $$= \dfrac{1}{4} = 0.25$$

In figure D,
Total Divisions $$= 30$$
Shaded Divisions $$= 9$$

$$\therefore\ $$ Shaded part $$= \dfrac{9}{30} = 0.33$$

Hence, the figure in option A represents $$0.3$$.
Question 5
1 / -0

$$3.\overline{25}$$ is equal to

A
$$ 2+\dfrac{25}{99} $$

B
$$ 3+\dfrac{24}{99} $$

C
$$ 3+\dfrac{25}{99} $$

D
$$ 3+\dfrac{25}{98} $$

Solution

$$3.\bar { 25 } =3+25*0.\bar { 01 } =3+25*\dfrac { 1 }{ 99 } =3+\dfrac { 25 }{ 99 } $$
Question 6
1 / -0

Solve : $$25 +\displaystyle{\frac{3}{100}}+\displaystyle{\frac{4}{1000}}=$$ ?

A
$$25.34$$

B
$$25.304$$

C
$$25.034$$

D
$$25.0034$$

Solution

The value of $$25 $$ $$+$$ $$\displaystyle{\frac{3}{100}}$$ $$+$$ $$\displaystyle{\frac{4}{1000}}$$ is
$$=25+0.03+0.004$$
$$= 25.034$$
Question 7
1 / -0

Amanda creates the base of a picture frame, using 4.55 inches of red fabric and 6.25 inches of blue fabric. How many inches of fabric are used to create the base of the frame?

A
10.80 inches

B
10.85 inches

C
10.75 inches

D
10.90 inches

Solution
Question 8
1 / -0

Rahul bought $$4 \,kg\, 90\, g$$ of apples, $$2 \,kg \,60\, g$$ of grapes and $$5\, kg \,300 \,g$$ of mangoes. The total weight of all the fruits he bought is _______

A
$$11.000 \,kg$$

B
$$11.450 \,kg$$

C
$$11.350\, kg$$

D
$$11.250 \,kg$$

Solution

$$\Rightarrow$$ Apples weight $$=4kg\,90g$$
$$\Rightarrow$$ Grapes weight $$=2kg\,60g$$
$$\Rightarrow$$ Mangoes weight $$=5kg\,300g$$
$$\Rightarrow$$ Total weight of all fruits $$=4kg\,90g+2kg\,60g+5kg\,300g=(4+2+5)kg\,(90+60+300)g= 11kg 450g= 11.450\,kg$$
$$\therefore$$ The total weight of all the fruits Rahul bought is $$11.450\,kg$$
Question 9
1 / -0

Expanded form of $$78.059$$ is

A
$$78$$ + $$\displaystyle{\frac{5}{10}}$$ + $$\displaystyle{\frac{9}{100}}$$

B
$$70 + 8 + 0 +$$ $$\displaystyle{\frac{5}{100}}$$ + $$\displaystyle{\frac{9}{1000}}$$

C
$$70 + 8 +$$ $$\displaystyle{\frac{5}{10}}$$ + $$\displaystyle{\frac{9}{100}}$$

D
none

Solution

Expanded form of $$78.059$$ is $$70+ 8+\displaystyle \frac { 0 }{ 10 } +\frac { 5 }{ 100 } +\frac { 9 }{ 1000 } $$
Question 10
1 / -0

What is the difference between 3.8 and 0.571?

A
0.73

B
2.567

C
3.229

D
4.262

Solution

Numbers are $$3.8$$ and $$0.571$$.
Subtracting both of them,
Ref. image
Answer - C