alleryఒక నిర్దిష్ట మార్గంలో వేగం 20% తగ్గితే, ప్రయాణ సమయం ఎంత శాతం పెరుగుతుంది?
A15%
B20%
C30%
D25%
Answer & Solution
Correct answer: D. 25%
సమయం పాత సమయానికి 1/0.8 = 1.25 రెట్లు అవుతుంది, అంటే 25% పెరుగుదల.
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