SAT Math Question

Algebra Level 3

A school bus carries 40 students, of which 20 are boys and 20 are girls.

At the first stop, 2 boys and 3 girls exit the bus.

At the second stop, 11 students exit the bus.

What is the fewest number of boys that must exit to ensure that more girls than boys have exited the bus?


The answer is 0.

View wiki
Shreya Banga by Shreya Banga , 22, India

This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try refreshing the page, (b) enabling javascript if it is disabled on your browser and, finally, (c) loading the non-javascript version of this page . We're sorry about the hassle.

2 solutions

Nate Thönnesen
Dec 27, 2015

More girls have already left, so no boys need to get off for that to remain true. In fact, the answer would always be zero because zero is the fewest of Group A to be chosen to ensure more is chosen from Group B.

2 Helpful 0 Interesting 0 Brilliant 0 Confused
Lew Sterling Jr
Jun 18, 2015

2 Helpful 0 Interesting 0 Brilliant 0 Confused

Was this a maths question or simple logic

Lokesh Jaat - 1 year, 8 months ago

Already 3 girls have exited, which is more than the number of boys who have exited (2). Now 17 girls are left in the bus. If 0 boys exit, then there will be more girls who have exited. But 11 students leave the bus. Since no boys have left, all the students who have left are girls. This is possible, because 17 girls are still left in the bus.

Sujal S - 1 year, 5 months ago

0 pending reports

×

Problem Loading...

Note Loading...

Set Loading...