LIC AAO 04 May 2019 Paper

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Directions (60–65) : What approximate value will come in place of question mark (?) in the given questions? (You are not expected to calculate the exact value.)

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Question : 65 of 100

Marks: +1, -0

44.97/{2.99+ 2.03}×3^{?}=181

–6
–5
–4
3
4

Solution:

(1)

45/{ 3 +2}× 3^{?}≈ 1 /81

⇒

9 × 3^{?} ≈ 1/ 3 ^4

⇒

3 ^{?} ≈ 1 /{3 ^4 ×9 } ≈ 3^{-4} × 3^{-2}

⇒

3 ^{?} ≈ 3^{-6} ⇒? ≈ -6

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