shm0401 wrote:

Can someone help me understand the question?

I must be sounding silly however my doubt is,

If 20% of students at a certain school went to a camping trip, then what is the point in asking the percentage of students at school who went to the camping trip?

Genuine doubt:

Please read the question now;

[highlight]If 20 percent of the students at a certain school went to a camping trip AND took more than $100[/highlight], and 75 percent of the students who went to the camping trip did not take more than $100, what percentage of the students at the school went to the camping trip?

The highlighted part is one giant sentence and should be read together.

e.g.

100- Students

20- Students went to the trip AND also took more than $100

Say, x students went to the trip.

So, x-20 will be the percent of student who took less than or equal to $100 with them.

And it is given that this x-20=75% who went to the picnic

OR

x-20=0.75x

x=80

_________________

~fluke

GMAT Club Premium Membership - big benefits and savings