## DragIT - Build the gearing ratio

Are you confident that you know the formulae for the gearing ratio? See if you can construct the ratios below. Drag the appropriate blue button from on the right to the orange target area to build the formula. *Try and get it right first time rather than by trial and error*. Click on '**Check answer**' once you are confident the answer is right. If you want another go, simply click on '**Reset**'.