Question

400 students are asked how they travel to school.

45% of the students take the bus to school.
The remaining students travel by car or walk to school.
20 more students walk than travel by car.
How many students walk to school?

Answer 1

120 student

Explanation:

We know

45% of the students take the bus to school

100% - 45% = 55%

So, 55% travel by car or walk to school

400 x 0.55 = 220 students

So, 220 student travel by car or walk to school

We know

20 more students walk than travel by car

220 - 20 = 200 students

200/2 = 100 students

100 + 20 = 120 students

So, 120 students walk to school