Question

At this same time in 2010, 78% of people said they went out dancing at least one night a month. Recently, this number has increased by only 2%. What is the recent percentage of people that go out dancing once a month?

Answer 1

Answer:

80 %

Step-by-step explanation:

since the percentage has increased by 2%, we say 78%+2%=80%

Answer 2

Answer:

79.56%

Step-by-step explanation:

In year, 2019, 78% of people said they went out dancing at least one night a month.

Let number of people go for dancing be x

Let total number of people be y

Percentage of people go for dancing = $\dfrac{x}{y}\times 100$

Therefore, $\dfrac{x}{y}\times 100=78$

$\dfrac{x}{y}=.78$

$x=0.78y$

Recently, this number has increased by only 2%.

New number of people go for dancing = x + 2% of x

                                                                = $x+0.02x$

                                                                = $1.02x$

New percentage go for dancing in a month $=\dfrac{1.02x}{y}\times 100$

                           $=\dfrac{1.02\times 0.78y}{y}\times 100$

                           $=79.56\%$

Hence, 79.56% of people go out dancing once a month.