In Chittagong stock exchange, the price of Bata share rose 30% yesterday and fell 20% today. What is the total rise or fall in percentage?

A 4% rise

B 8% rise

C 6% rise

D 10% rise

Solution

Correct Answer: Option A

Total rise or fall in percentage = ± a ± b ± (ab/100)
                                           = 30 - 20 - {(30 x 20)/100}
                                           = 10 - 6 
                                           = 4% 

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