Home › RRB Group D › Mathematics › Order of Operations › Evaluate: 75 ÷ [35 − {63 − (79 − 54 ÷ 9 × 6)}].
Evaluate: 75 ÷ [35 − {63 − (79 − 54 ÷ 9 × 6)}].
A3
B25
C5
D15
Answer & Solution
Correct answer: C. 5
1. Innermost: 54 ÷ 9 × 6 = 6 × 6 = 36, so 79 − 36 = 43.
2. Then 63 − 43 = 20, and 35 − 20 = 15.
3. 75 ÷ 15 = 5.
_Source: RRB Group D CEN-02/2018 PYQ, Q.91._
Related questions