A pole is painted red and white. The red portion is $1.8 m$ and the white portion is three times as long as the red portion. How long is the pole?

5.4 m

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7.2 m

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3.6 m

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None of these

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Solution

The correct option is A $7.2 m$
Length of the red portion $= 1.8 m$
$∴$ Length of the white portion $= 3 \times 1.8 m$
$= 5.4 m$
So, total length of pole $= (1.8 + 5.4) m$
$= 7.2 m$ .

Hence, $O p - B$ is correct.

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A pole is painted red and white. The red portion is 1.8m and the white portion is three times as long as the red portion. How long is the pole?

The correct option is A 7.2 mLength of the red portion =1.8 m∴ Length of the white portion =3×1.8 m =5.4 mSo, total length of pole =(1.8+5.4)m =7.2 m.Hence, Op−B is correct.

A pole is painted red and white. The red portion is $1.8 m$ and the white portion is three times as long as the red portion. How long is the pole?

The correct option is A $7.2 m$
Length of the red portion $= 1.8 m$
$∴$ Length of the white portion $= 3 \times 1.8 m$
$= 5.4 m$
So, total length of pole $= (1.8 + 5.4) m$
$= 7.2 m$ .

Hence, $O p - B$ is correct.