BECE Social Studies 2013 Paper

Concept:Map scale shows the ratio between a distance on the map and the corresponding actual distance on the ground.Explanation:The scale $1:10{,}000$ cm means that $1$ cm on the map represents $10{,}000$ cm on the ground.For a map distance of $20$ cm:$20 \times 10{,}000 = 200{,}000$ cm on the ground.Convert centimetres to metres: $100$ cm $= 1$ m.So, $200{,}000 \div 100 = 2000$ m.Convert metres to kilometres: $1000$ m $= 1$ km.So, $2000 \div 1000 = 2$ km.Answer:The actual distance on the ground is $2$ km, which is Option C.