a small map is drawn to a scale of 1:20. calculate the length on the map of a table if its actual length is 32 m, giving your answer in cm. @08surya

Question

anas.p · Answer

it simple you use cross multiplication

anas.p · Answer

|dw:1411915059719:dw|

anonymous · Answer

sorry i cant understand. um please give me the methods

anas.p · Answer

try to find x now..

anas.p · Answer

can you do it?

anonymous · Answer

ya i've got 1.6

anonymous · Answer

x=1 3/5

anas.p · Answer

good
yes but 1.6 is in meters...
you have to give in centimeters

anas.p · Answer

you get it?

anonymous · Answer

160 cm

anas.p · Answer

good...

anonymous · Answer

ok let's take it from start
x is the actual length, that is 1.6 m is the actual length
when multiplying by 100 cm it becomes 160 cm which is the length on a map??

08surya · Answer

x=32*100/20

anas.p · Answer

no...32 meters is the actual length.
Let us first look at the ratio 1:20. This means that anything that is 20 meters in actual will look like 1 meter on the map.
If it is 20cm in actual it will look 1 cm on the map.

anas.p · Answer

So because the length was given in meters you found out the map size in meters.

anas.p · Answer

1.6 meters is the same as 160 cm
You are just converting it.

anonymous · Answer

ok then by multiplying by 100 will be length on the map?

anonymous · Answer

now i finally got it.. thanks a lot guys :)