M.C.Q. [1 Marks Each]

MCQ 2011 Mark

Decimal form of $ \frac{8}{1000}$

A
$0.0008$
B
$1000.9$
✓
$0.008$
D
$0.08$

Answer

Correct option: C.

$0.008$

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MCQ 2021 Mark

Mark $(\checkmark)$ against the correct answer in the following:
What should be subtracted from. $1$ to get $0.03?$

A
$0.7$
✓
$0.07$
C
$0.007$
D
None of these

Answer

Correct option: B.

$0.07$

$0.1 - 0.03 = 0.10 - 0.03 = 0.07$

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MCQ 2031 Mark

By what number should $1\frac{3}{4}$ be divided to get $2\frac{1}{2}?$

A
$\frac{3}{7}$
B
$1\frac{2}{5}$
✓
$\frac{7}{10}$
D
$1\frac{3}{7}$

Answer

Correct option: C.

$\frac{7}{10}$

Let the required number be $x.$
Now,
$1\frac{3}{4}\div\text{x}=2\frac{1}{2}$
$\Rightarrow\frac{7}{4}\times\frac{1}{\text{x}}=\frac{5}{2}$
$\Rightarrow\text{x}=\frac{7}{4}\times\frac{2}{5}$
$\Rightarrow\text{x}=\frac{7\times1}{2\times5}$
$\Rightarrow\text{x}=\frac{7}{10}$
Thus, the required number is $\frac{7}{10}$

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MCQ 2041 Mark

$9\times\Big(-\frac{1}{3}\Big)\times(-3)\times\Big(-\frac{1}{9}\Big)=$

A
$1$
✓
$-1$
C
$-3$
D
$3$

Answer

Correct option: B.

$-1$

Since the number of negative terms in the product is odd. Therefore, their product is negative.
$9\times\Big(-\frac{1}{3}\Big)\times(-3)\times\Big(-\frac{1}{9}\Big)$
$=9\times\Big(-\frac{1}{9}\Big)\times\Big(-\frac{1}{3}\Big)\times(-3)$
$=-\Big(9\times\frac{1}{9}\times\frac{1}{3}\times3\Big)$
$=-(1\times1)$
$=-1$

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MCQ 2051 Mark

Example for an improper Fraction is:

A
$ \frac{35}{36}$
✓
$ \frac{20}{10}$
C
$ \frac{12}{14}$
D
$ \frac{17}{20}$

Answer

Correct option: B.

$ \frac{20}{10}$

If denominator is less than the Numerator in a fraction, then it is termed as improper fraction.

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MCQ 2061 Mark

What is the multiplication of the numbers $ \text{1}\frac{1}{3}\times \text{3}\frac{1}{4}\times\frac{7}{8}?$

A
$ \text{3}\frac{18}{24}$
B
$ \text{2}\frac{19}{24}$
✓
$ \text{3}\frac{19}{24}$
D
$ \text{2}\frac{18}{24}$

Answer

Correct option: C.

$ \text{3}\frac{19}{24}$

Given, $ \text{1}\frac{1}{3}\times\text{3}\frac{1}{4}\times\frac{7}{8}$
$= \frac{4}{3}\times\frac{13}{4}\times\frac{7}{8}$
$= \frac{13}{3}\times\frac{7}{8}$
$= \frac{91}{24}$
$= \text{3}\frac{19}{24}$

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MCQ 2071 Mark

Mark $(\checkmark)$ against the correct answer in the following: By what number should $1\frac{3}{4}$ be divided to get $2\frac{1}{2}?$

A
$\frac{3}{7}$
B
$1\frac{2}{5}$
✓
$\frac{7}{10}$
D
$1\frac{3}{7}$

Answer

Correct option: C.

$\frac{7}{10}$

Required number $=1\frac{3}{4}\div2\frac{1}{2}$
$=\frac{7}{4}\div\frac{5}{2}$
$=\frac{7}{4}\times\frac{2}{5}$
$\Big[\because$ Reciprocal of $\frac{2}{5}=\frac{2}{5}\Big]$
$=\frac{7\times1}{2\times5}$
$=\frac{7}{10}$

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MCQ 2081 Mark

On dividing $7 $ by $\frac{2}{5}$, the result is:

A
$\frac{14}{2}$
B
$\frac{35}{4}$
C
$\frac{14}{5}$
✓
$\frac{35}{2}$

Answer

Correct option: D.

$\frac{35}{2}$

Given, $7+\frac{2}{5}=7\times\frac{5}{2}=\frac{35}{2}$
$\big[\because$ reciprocal of $\frac{2}{5}=\frac{5}{2}\big]$
Hence, on dividing $7 $ by $ \frac{2}{5}, $ we get $\frac{35}{2}$

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MCQ 2091 Mark

The difference between the greatest and the least fractions out of $\frac{6}{7},\frac{7}{8},\frac{8}{9}$ and $\frac{9}{10}$ is:

✓
$\frac{3}{10}$
B
$\frac{1}{56}$
C
$\frac{1}{40}$
D
$\frac{1}{72}$

Answer

Correct option: A.

$\frac{3}{10}$

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MATHS M.C.Q. [1 Marks Each]