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A barrel holds 4 L and 500 mL of acid. How many containers, each of capacity 25 mL, can be filled from it?
A175
B180
C200
D185
Answer & Solution
Correct answer: B. 180
1. Convert total acid to mL: 4 L 500 mL = 4500 mL.
2. Divide by container capacity: 4500 ÷ 25.
3. This equals 180 containers.
_Source: RRB Group D CEN-02/2018 PYQ, Q.33._