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What will come in place of question mark '?' in the following question?

\(\frac{17.28 \div ?}{3.6 \times 0.2} =200\)


1. 0.19
2. 0.12
3. 0.21
4. 0.15
5. None of these

1 Answer

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Best answer
Correct Answer - Option 2 : 0.12

\(\frac{17.28 ÷ ?}{3.6 × 0.2} =200\)

Calculations:

(17.28 ÷ ?) / (3.6 × 0.2) = 200

(17.28 ÷ ?) / (0.72) = 200

⇒ 17.28 ÷ ? = 200 × 0.72

⇒ 17.28 ÷ ? = 144

⇒ ?  = 17.28/144

⇒ 0.12

∴ The value in the (?) is 0.12

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