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Question

What is the value of $\frac{(0.03)\times(0.05)\times(1.5)}{0.0225}$?

This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
0.1

Evaluating the Decimal Expression

The problem requires calculating the value of the expression:

$ \frac{(0.03)\times(0.05)\times(1.5)}{0.0225} $

Step-by-Step Calculation

  1. First, calculate the product of the numbers in the numerator:

    $ (0.03) \times (0.05) = 0.0015 $
  2. Next, multiply this result by 1.5:

    $ 0.0015 \times 1.5 = 0.00225 $

    So, the numerator evaluates to 0.00225.

  3. Now, divide the result from the numerator by the denominator:

    $ \frac{0.00225}{0.0225} $
  4. To simplify the division, we can multiply both the numerator and the denominator by 100000 to eliminate the decimals:

    $ \frac{0.00225 \times 100000}{0.0225 \times 100000} = \frac{225}{2250} $
  5. Simplify the fraction:

    $ \frac{225}{2250} = \frac{1}{10} $
  6. Convert the fraction to its decimal form:

    $ \frac{1}{10} = 0.1 $

Therefore, the value of the given expression is 0.1.

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Important Questions from Decimals

  1. The value of \(\frac{1}{4} + \frac{{[{{(20.35)}^2} - {{(8.35)}^2}] \times 0.0175}}{{{{(1.05)}^2} + (1.05)(27.65)}}\)  is:

  2. The value of \(0.4\overline 6 + 0.7\overline {23} - 0.3\overline 9 \times 0.\overline 7 \)  is:

  3. The value of \(\frac{48.3\times[(4.95)^2+4.95\times13.25]}{[(12.55)^2-(5.65)^2]\times19.8} \)  is:

  4. Find the value of (1.6) 3 - (0.9) 3 - (0.7) 3.

  5. What is the value of x, if \(5\left( {1 - \frac{x}{5}} \right) - (5 - x) - \frac{1}{{200}}{\rm{of (20 - x) = 0}}{\rm{.08}}\) ?

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