Home › RRB Group D › Mathematics › Simplification › Evaluate: 66 ÷ [67 − {43 − (17 − 117 ÷ 9 × 4)}] …
Evaluate: 66 ÷ [67 − {43 − (17 − 117 ÷ 9 × 4)}] = ?
A11
B−6
C−11
D6
Answer & Solution
Correct answer: B. −6
1. Innermost: 117 ÷ 9 = 13, then × 4 = 52; 17 − 52 = −35.
2. Next bracket: 43 − (−35) = 78; then 67 − 78 = −11.
3. 66 ÷ (−11) = −6.
_Source: RRB Group D CEN-02/2018 PYQ, Q.22._
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