What approximate value should come in pla… | Answer

Subject

Quantitative Aptitude

Topic

Simplification

What approximate value should come in place of question mark (?) in the following question? $\sqrt {89898} \times 2.486 = ?$
Reading

ক)

1200

খ)

100

গ)

750

ঘ)

1400

ঙ)

850

Explanation

In this type of question, we are expected to calculate Approximate value (not exact value), so we can replace the given numbers by their nearest perfect places which makes the calculation easy. We can write the given values as: 89898 ≈ 9 × 10000 2.486 ≈ 2.5 Now the given expression will be transformed as:

\begin{array}{l} \sqrt {89898} \times 2.486 = ?\\ \Rightarrow ? \approx \sqrt {9 \times 10000} \times 2.486 \end{array}

⇒ ? ≈ 3 × 100 × 2.5 ⇒ ? ≈ 750

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What approximate value should come in place of question mark (?) in the following question? 89898×2.486=?\sqrt {89898} \times 2.486 = ?89898​×2.486=?Reading

What approximate value should come in place of question mark (?) in the following question? 89898×2.486=?\sqrt {89898} \times 2.486 = ?89898​×2.486=?

Explanation

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What approximate value should come in place of question mark (?) in the following question? $\sqrt {89898} \times 2.486 = ?$
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What approximate value should come in place of question mark (?) in the following question? $\sqrt {89898} \times 2.486 = ?$