allery10% અને 20% ના બે ક્રમિક વળતર એ કેટલા ટકાના એકલ વળતર બરાબર છે?
A25%
B30%
C28%
D26%
Answer & Solution
Correct answer: C. 28%
બાકી રહેતો અપૂર્ણાંક 0.9 x 0.8 = 0.72 છે, તેથી એકમાત્ર સિંગલ વળતર 28 ટકા છે.
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