Question

A survey of 1,600 people was done by the New York Times. 80% of the people did not know the name of their representative in Congress. How many of the 1,600 people did not know the name of the Congressman?

Answer 1

Given-

Number of people involved in a survey =  1,600

80% of the people did not know the name of their representative in Congress.

To find-

The number of people did not know the name of the Congressman from 1600 people.

Solution-

Percentage means divide by 100.

By getting the 80% of 1600 we can find the number of people did not know the name of the Congressman name.

80% of the people did not know the name of their representative in Congress from 1600 people.

we can write it as,

80% of 1600= $\frac{80}{100} \times 1600$

80% of 1600= $80\times 16$

80% of 1600= $1280$

So,

We can say that

The number of people did not know the name of the Congressman from 1600 people is 1,280