Question

On a school trip to a theme park, four busses each carry 175 students.

15% of the students are bringing their own lunch.
1/7 of the students are buying lunch when they get to the theme park.
The teachers are worried that some students have not made plans for lunch.
Find how many students have not made plans for lunch.

Answer 1

495 students.

Explanation:

Four buses each carry 175 students.

So,

Total Students =:4 × 175 = 700

Students who brought lunch =:15% of 700

= 15/100 × 700

= 105

Students who will buy lunch when they get to theme park = 1/7 × 700

= 100

So,

Students who don't have plans for lunch = 700 - 105 -100

= 495