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RRB Junior Clerk Exam (Allahabad) 2009 click here to view all questions

$$\frac{180 \times 15- 12 \times 20}{ 140 \times 8 + 2 \times 55} = ?$$

A\frac{1}{7}

B\frac{4}{5}

C2

D4

Nithin K ? Apr 21 '2018 at 17:46

Correct Answer: C [2]

Explanation:

\(\frac{180 \times 15 - 12 \times 20}{140 \times 8 + 2 \times 55}\)

\(=\frac{20 \times 3 [9 \times 5-4]}{10[14 \times 8 +1]}\)

\(=\frac{6 \times 41}{112+11}\implies \frac{6 \times 41}{123}\)

\(=6 \times \frac{1}{3}\)

\(=2\)

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Correct Answer: C [2] Explanation: \(\frac{180 \times 15 - 12 \times 20}{140 \times 8 + 2 \times 55}\) \(=\frac{20 \times 3 [9 \times 5-4]}{10[14 \times 8 +1]}\) \(=\frac{6 \times 41}{112+11}\implies \frac{6 \times 41}{123}\) \(=6 \times \frac{1}{3}\) \(=2\) Nithin K ? answered Apr 21 '2018 at 17:46 All Comments

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