Fractions and Decimals Test

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Fractions and Decimals Test - 22

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Weekly Quiz Competition

Question 1
1 / -0

Sum of $$1.8, 16.3$$ and $$72.985$$ is _____

A
$$91.85$$

B
$$9108.5$$

C
$$91.085$$

D
$$9.1085$$

Solution

$$1.800+16.300+72.985=91.085$$

So option C is the correct answer.
Question 2
1 / -0

Difference of 32 and 27.091 is

A
30.791

B
5.909

C
4.909

D
3.909

Solution

32.000-27.091=4.909
So option C is the correct answer.
Question 3
1 / -0

Improper fraction of $$12\dfrac {1}{6}$$ is

A
$$\dfrac {72}{6}$$

B
$$\dfrac {73}{6}$$

C
$$\dfrac {108}{6}$$

D
$$\dfrac {85}{6}$$

Solution

$$\dfrac {WN\times D+N}{D}$$
$$\dfrac {12\times 6+1}{6}=\dfrac {72+1}{6}=\dfrac {73}{6}$$
Question 4
1 / -0

Mixed fraction for $$\dfrac {39}{12}$$ is

A
$$3\dfrac {1}{12}$$

B
$$3\dfrac {2}{12}$$

C
$$3\dfrac {3}{12}$$

D
$$2\dfrac {14}{12}$$

Solution

To convert an improper fraction to a mixed fraction, we divide the numerator by the denominator, then write down the whole number answer. Finally, we write down any remainder above the denominator.

So, in this case when $$39$$ is divided by $$12$$ then it leaves the remainder equal to $$3$$ and the quotient is $$3$$ as well.
$$\dfrac{{39}}{{12}} = 3\dfrac{3}{{12}}$$

So, option $$C$$ is correct.
Question 5
1 / -0

Sum of $$0.3, 0.03$$ and $$0.003$$ is _____

A
$$0.999$$

B
$$0.393$$

C
$$0.636$$

D
$$0.333$$

Solution

To add $$3$$ decimal numbers of different decimal values we pick the number with the highest decimal value and expand all the other numbers to the same value by adding $$0$$ after the decimal point.

$$0.300+0.030+0.003=0.333$$

So option D is the correct answer!
Question 6
1 / -0

Product of 78.12 and 1.5 is

A
117.81

B
117.18

C
117.32

D
117.80

Solution

$$78.12 \times 1.5$$

$$ = \dfrac{{7812}\times 15}{{1000}} $$

$$ = \dfrac{{117180}}{{1000}}$$

=$$117.18$$
Question 7
1 / -0

Example for a proper fraction is ____

A
$$\dfrac {28}{13}$$

B
$$\dfrac {11}{23}$$

C
$$\dfrac {16}{9}$$

D
$$\dfrac {14}{3}$$

Solution

A proper fraction is a fraction that is less than one, with the numerator less than the denominator.

The only fraction with the numerator less than the denominator in the given options is $$\dfrac{11}{23}.$$

So option B is the correct answer.
Question 8
1 / -0

Example for an improper fraction is

A
$$\dfrac {25}{26}$$

B
$$\dfrac {12}{13}$$

C
$$\dfrac {15}{14}$$

D
$$\dfrac {19}{20}$$

Solution

An improper fraction is a fraction that has a larger number on the top than on the bottom.
The number on the top of the fraction is a numerator and the number on the bottom is a denominator.
Therefore, an improper fraction has a greater numerator than the denominator.

The only option with the numerator greater than the denominator is option C
$$\dfrac{15}{14}$$ So, option C is the correct answer.
Question 9
1 / -0

Expanded form of 78.059 is

A
$$78+\dfrac {5}{10}+\dfrac {9}{100}$$

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

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

D
none of these

Solution

The number system has places. We all know the ones tens hundredths places.

After decimal the first decimal digit from the decimal point is the tenth, the second decimal digit from the decimal point is the hundredth and the third decimal digit from the decimal point is the thousandths digit.

Read the whole set of three decimal digits as a number, and say, "tenths", "hundredths" and “thousandths.” 78.059 has 0 tenths, 5 hundredths, and 9 thousandths.

While 78.059 is the sum of $$70+8+\dfrac{0}{10} +\dfrac{5}{100} + \dfrac{9}{1000} $$.

So option B is the correct answer.
Question 10
1 / -0

The cost of 1 lit. of milk is Rs. 7.50 then the cost of 30.5 lit. of milk is

A
Rs. 225.75

B
Rs. 223.75

C
Rs. 228.75

D
none

Solution

The cost of 1 lit. of milk is Rs. 7.50 .
The cost of 30.5 lit. of milk is
$$\displaystyle 7.50\times 30.5=Rs.228.75$$

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Fractions and Decimals Test - 22

Result

Fractions and Decimals Test - 22

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SHARING IS CARING

Question 1

$$91.85$$

$$9108.5$$

$$91.085$$

$$9.1085$$

Solution

Question 2

30.791

5.909

4.909

3.909

Solution

Question 3

$$\dfrac {72}{6}$$

$$\dfrac {73}{6}$$

$$\dfrac {108}{6}$$

$$\dfrac {85}{6}$$

Solution

Question 4

$$3\dfrac {1}{12}$$

$$3\dfrac {2}{12}$$

$$3\dfrac {3}{12}$$

$$2\dfrac {14}{12}$$

Solution

Question 5

$$0.999$$

$$0.393$$

$$0.636$$

$$0.333$$

Solution

Question 6

117.81

117.18

117.32

117.80

Solution

Question 7

$$\dfrac {28}{13}$$

$$\dfrac {11}{23}$$

$$\dfrac {16}{9}$$

$$\dfrac {14}{3}$$

Solution

Question 8

$$\dfrac {25}{26}$$

$$\dfrac {12}{13}$$

$$\dfrac {15}{14}$$

$$\dfrac {19}{20}$$

Solution

Question 9

$$78+\dfrac {5}{10}+\dfrac {9}{100}$$

$$70+8+0+\dfrac {5}{100}+\dfrac {9}{1000}$$

$$70+8+\dfrac {5}{10}+\dfrac {9}{100}$$

none of these

Solution

Question 10

Rs. 225.75

Rs. 223.75

Rs. 228.75

none

Solution

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