Question

on the subway 8 out of 11 people are carrying a briefcase. Based on the information, if there are 700 people on the subway, then about how many do not have a briefcase?

Answer 1

Answer:

About 191 people

Step-by-step explanation:

Given:

On the subway 8 out of 11 people are carrying a briefcase.

There are 700 people on the subway.

Question asked:

About how many people do not have a briefcase ?

Solution:

By applying unitary method:

Out of 11 people, number of people having  briefcase = 8

Out of 1 , number of people having  briefcase = $\frac{8}{11}$

Out of 700 people, number of people having  briefcase = $\frac{8}{11} \times700$

                                                                                             = $\frac{5600}{11}$

Number of people not having  briefcase = $700 -$$\frac{5600}{11}$

                                                                   = $\frac{7700-5600}{11}$

                                                                   = $\frac{2100}{11}$ = $190.90$

Therefore, about 191 people  do not have a briefcase on the subway.