AFCAT Model Paper 6

Let the length of the pole be ‘x’ m
Length of pole painted red = 40% of x = 0.4x
Length of pole painted white =(

1

5

)×(x−0.4x)=0.12x
Length of pole painted black =(

1

2

)×(x−0.4x−0.12x)=0.24x
Length of pole painted yellow = x - 0.4x - 0.12x - 0.24x = 0.24x
⇒ 0.24x = 12
⇒x=

12

0.24

=50m
∴ The length of the pole is 50 m