Question

20% of a flagpole is painted green, 45% is painted yellow and the remaining red. If the length of the pole is 18m, what length of it is painted red?​

Answer 1

Answer:

6.3m

Step-by-step explanation:

Length of pole =18m

Percentage of pole which is painted green =20%

Percentage of pole which is painted yellow =45%

and remaining pole =100−(20+45)=35%

and it is painted red

Length of pole which is painted red

=35% of 18m=

100

35

×18

=

10

63

=6.3m

Answer 2

Length of flagpole painted red is 6.3 m

Step-by-step explanation:

Total length of flagpole = 18m

% of Flagpole painted green = 20 %

Part painted green = 20/100 × 18 m = 3.6 m

% of Flagpole painted yellow = 45%

Part painted yellow = 45/100 × 18 m = 81/10 m = 8.1 m

part painted red = Total length – length of green + length of yellow

Part painted red = 18 m – 3.6 m + 8.1 m

= 18 m – 11.7 m

= 6.3 m