1 10 of a rod is coloured red 1 20 orange 1 30 yellow 1 40 green 1 50 blue 1 60 black and the rest i...........

Quantitative Aptitude ( CCS) Simplification

1/10 of a rod is coloured red, 1/20 orange, 1/30 yellow, 1/40 green, 1/50 blue, 1/60 black and the rest is violet. If the length of the violent portion of the rod is 12.08 m, then the length of the rod is

16 m

18 m

20 m

30 m

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Explanation:

It is 16 m. When we add all the fraction numbers and subtract it from 1 to get the remaining length for Violet color, we get 453/600.
Which is the area of violet part.
And in question the length in metres is given for the violet part which is 12.08m.
So multiplying it with the reciprocal of violet area will give us the total length of the rod.
So here it goes like this-
1–(1/10+1/20+1/30+1/40+1/50+1/60)=453/600
12.08*600/453 will give us the total length.
And it is 16m.