alleryவேகம் 25% அதிகரித்தால், ஒரு குறிப்பிட்ட பயணத்திற்கான நேரம் எத்தனை சதவீதம் குறைகிறது?
A15%
B30%
C25%
D20%
Answer & Solution
Correct answer: D. 20%
புதிய நேரம் பழைய நேரத்தில் 1/1.25 = 0.8 ஆகும், அதாவது 20% குறைவு.
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