Answer :
To get the answer we have to use proportion
20% -----------------27
100% --------------x
crossmultiply now
20*x=100*27 /:20
x=2700:20
x=135 miles/hour
Similar situation
60% --------------24
100% -------------x
crossmultiply
60*x=100*24
60x=2400 /:60
x=40 - its the answer
20% -----------------27
100% --------------x
crossmultiply now
20*x=100*27 /:20
x=2700:20
x=135 miles/hour
Similar situation
60% --------------24
100% -------------x
crossmultiply
60*x=100*24
60x=2400 /:60
x=40 - its the answer