Monday

January 26, 2015

January 26, 2015

Posted by **kelvin** on Thursday, December 3, 2009 at 7:50pm.

- math -
**MathMate**, Thursday, December 3, 2009 at 10:41pmIf he stepped on the middle step, there must be an odd number of steps, say 2n+1.

He started off at step n+1.

"he climbed up three steps"

he was on step n+1+3.

"go down five steps"

he was on step n+1+3-5.

"climbed up the last six steps and was at the top"

n+1+3-5+6=2n+1

solve for n, and the number of steps is 2n+1.

**Answer this Question**

**Related Questions**

math - A fireman stood on the middle step of a ladder, shooting water into a ...

math - a fireman stood on the middle step of a ladder, shooting water into a ...

math - A fireman stood in the middle of a step ladder. He climbed down 4 steps ...

Math - 20.A firefighter spraying water on a fire stood on the middle of a ladder...

math - A firefighter stood on the middle rungs of a ladder ,spraying water on a ...

math 4 grade - A firefighter stood on the middle rungs of a ladder ,spraying ...

Math word problem - A fire and rescue squads places a 15 ft ladder against a ...

Algebra - A fireman leans a 40-ft long ladder up against a building. The base of...

physics - A fireman, 29.1 m away from a burning building, directs a stream of ...

physics - A fireman 46.0 m away from a burning building directs a stream of ...