Question

One over five of the pole is painted green ,two over three of it painted red ,the remaining 2 metre is black. What is thethe total length of the pole which is painted in green and red.

Answer 1

1/5 + 2/5 + b = 1

b = 1- 1/5 - 2/3 = (15 - 3 - 10 ) /15 = 2/15

here black portion is 2m which is equivalent to 2/15 part of the pole .

so , Assuming the pole length iz p

p(2/15) = 2

p = 15 m.

so green portion = 15(1/5) = 3m

red portion = 15(2/3) = 10m

total of red &green = 10 + 3 = 13m