College

If 678 math majors at a conference comprise 85% of all people at the conference, how many people are at the conference?

Answer :

There are total of 798 people at the conference.

How do you take the percentage?

  • The percentage symbolizes a part out of a hundred. The word usually % tends to refer to one hundred percent.
  • It is signified by the symbol "%."
  • Listed below are some percentage examples: 10% is 1/10 of a fraction.

For, the given question;

Let the total number of people at the conference be 'x'.

The, 85% of the total are of math majors.

The total of math majors are 678.

Thus,

85% of total = math majors

85% of x = 678

(85 × x)/100 = 678

Do the simplification;

x = (678 × 100)/85

x = 797.65

x = 798 (approx)

Therefore, the total number of present people at conference are 798.

To know more about the percentage, here

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