alleryજો કોઈ નિશ્ચિત રસ્તા પર ઝડપમાં 20% નો ઘટાડો થાય, તો મુસાફરીના સમયમાં કેટલા ટકાનો વધારો થાય છે?
A15%
B20%
C30%
D25%
Answer & Solution
Correct answer: D. 25%
સમય જૂના સમય કરતાં 1/0.8 = 1.25 ગણો થાય છે, એટલે કે 25% નો વધારો.
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