Question

Of the 125 people in a company , three-fifths have a smartphone . How many children do not have a smartphone

Answer 1

HAVE smart phones + do NOT have smart phones = 125

Have smart phones

$\frac{3}{5} *125 = \frac{3(125)}{5} = 3(25) = 75$

HAVE + NOT = 125

 75     + NOT  = 125

-75                     -75

             NOT = 50

Answer: 50 people do not have a smart phone