Math Problem 10. How to solve a complicated Percentage Question | NTS | Aptitude Tests

In this video I have solve the following Question.

#AptitudeTests #QuantitativeAbility
Question. In an election between two candidates, one got 55% of the total valid votes. 20% of the votes were invalid. If the total number of votes was 7500, what was the number of valid votes that the other candidate got?
(A) 2500 (B) 2800 (C) 2700 (D) 2100

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