Question

Lacoste middle school surveyed its student population about their favorite mobile app. The 786 students who listed Facebook as their favorite app represened 32 fewer students than two times the number on Instagram as their favorite app. How many students listed Instagram as their favorite app?

Answer 1

786 Facebook favorited app

-32
x2
786 - 32 = 754
754 divided by 2 = 377

Answer 2

Hence, the number of students who listed Instagram as their favorite app is 409

Explanation:

Let x denote the number of students who listed Instagram their favorite app.

Now the number of people who listed Fb as their favorite app is 32 less than two times number of students who have Instagram as their favorite app.

Hence, the equation so obtained is given by:

786 = 2x - 32

i.e. 2x = 818

i.e. x = 409

Hence, the answer is: 409