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Question

How much does one need to add to $\frac{1}{2}$ to get $2$?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
$\frac{3}{2}$

Finding the Missing Addend

The question asks for a number that, when added to $\frac{1}{2}$, results in $2$. We need to find the value $x$ in the equation:

$ \frac{1}{2} + x = 2 $

Solving the Equation

To find $x$, we subtract $\frac{1}{2}$ from both sides of the equation:

$ x = 2 - \frac{1}{2} $

To subtract the fractions, we find a common denominator, which is $2$. We rewrite $2$ as $\frac{4}{2}$:

$ x = \frac{4}{2} - \frac{1}{2} $

Subtract the numerators:

$ x = \frac{4 - 1}{2} $

$ x = \frac{3}{2} $

Conclusion

The value that needs to be added to $\frac{1}{2}$ to get $2$ is $\frac{3}{2}$. This corresponds to Option A.

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Important Questions from Fractions

  1. Which fraction among the following is the least ?

    \(\frac{5}{11}, \frac{7}{12}, \frac{8}{13}, \frac{9}{17}\)

  2. Find the value of the following expression:

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  3. Simplify the expression 441 ÷  \(\left[270 \div \frac{3}{7}+\left(17\div \frac{1}{3}\right)-\left(8\frac{1}{2}-\frac{5}{2}\right)\right]\)

  4. If the sum of two positive numbers is 65 and the square root of their product is 26, then the sum of their reciprocals is:

  5. The value of \(9 \div [\frac{1}{2}+\frac{1}{3}+\frac{1}{4}+\frac{1}{6}\div(\frac{3}{4}-\frac{1}{3})\;of\;\frac{2}{9}]\)  is:

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