# Math Help - How long is the real slide?

1. ## How long is the real slide?

There is a map of a funfair drawn to a scale of 2cm to 7m. On the map there is a slide
6cm long. How long is the real slide?.

With thanks

Alan

2. So every 2cm equals 7m in real life. If the slide is 6cm long, then the real slide is 21m. How? Well think about it, 2cm goes into 6cm 3 times, and if you look at the scale it will be 7+7+7 giving you 21m.

3. First, you have to understand that 2cm on the map represents 7m on the actual ground.

Therefore: 2cm:7m
=2cm:700cm
=1cm:350cm

Since the slide in the map measures 6cm, (6 X 350)cm = 2100cm
=21m

4. Thanks a lot .Greate help