alleryവേഗത 25% വർദ്ധിച്ചാൽ ഒരു നിശ്ചിത യാത്രയ്ക്കുള്ള സമയം എത്ര ശതമാനം കുറയും?
A15%
B30%
C25%
D20%
Answer & Solution
Correct answer: D. 20%
പുതിയ സമയം പഴയതിന്റെ 1/1.25 = 0.8 ആണ്, 20% ന്റെ കുറവ്.
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