A survey of n people in the town of badaville found that 50% of them prefer…

2024

A survey of n people in the town of badaville found that 50% of them prefer brand A. Another survey of 100 people in the town of chottaville found that 60% prefer brand A.In total 55% of all the people surveyed together prefer Brand A.What is the total number of people surveyed?

Answer: C. 200 — Sol: 50% (n) + 60% (100 ) = 55% (n + 100) Solving we get n = 100 So total number of people surveyed is 100 + n = 100 + 100 = 200

  1. A.

    100

  2. B.

    321

  3. C.

    200

  4. D.

    250

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Show answer & explanation

Correct answer: C

Sol: 50% (n) + 60% (100 ) = 55% (n + 100)

Solving we get n = 100

So total number of people surveyed is 100 + n = 100 + 100 = 200

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