RRB Technician Grade 1 Model Paper 5

Concept:Use the BODMAS rule: Brackets, Of, Division, Multiplication, Addition, Subtraction. Solve the innermost brackets first.Explanation:Start with the inner division: $4 \div \frac{1}{4} = 4 \times 4 = 16$.Then, $4\div \frac{1}{4} - 1 = 16 - 1 = 15$.Also, $2 \div \frac{1}{3} = 2 \times 3 = 6$.Substitute these values into the original expression:$[6 - 2\{3 - 4(15) + 6\} - 3 \times 2]$Simplify inside the curly brackets: $3 - 60 + 6 = -51$.Now multiply outside: $2 \times (-51) = -102$.The expression becomes: $[6 - (-102) - 6] = [6 + 102 - 6]$.Finally, calculate: $6 + 102 - 6 = 102$.Answer:$102$, which is option D.