Question

find the height of flagpole which casts a shadow 20m long at a time and place where the shadow of a stick 1m long is 55 cm

Answer 1

let he height be x
the height of the stick is 1 m and casts a shaow of 55cm
so,by direct variation

x/100=2000(converted to cm)/55
55x=2000*100
x=2000*100/55

and you are done and convert the height back to m 

Answer 2

Answer:

36 whole 4 by 11

Step-by-step explanation:

let let the height be x

the height of the stick is 1 metre and casts a shadow of 55 CM

so by direct variation

x/100=2000 convert into cm/ 500

55x=2000/100

x= 2000×100/55=36 whole 4 by 11