alleryThe ratio of 30 minutes to 40 minutes is written as:
A3 : 4
B1 : 80
C1 : 20
D4 : 3
Answer & Solution
Correct answer: A. 3 : 4
1. Both quantities are in the same unit (minutes).
2. Ratio = 30 : 40.
3. Dividing both by 10 gives 3 : 4.
_Source: RRB Group D CEN-02/2018 PYQ, Q.79._
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