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60% of the length of a pole is painted r...

`60%` of the length of a pole is painted red, `40%` of the rest is painted green and `50%` of the balance is painted blue. The remaining unpainted length of the pole is 30 cm. The length of the pole is-

A

`2cdot5` m

B

`3cdot2` m

C

`4cdot8` m

D

`5cdot6` m

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • One third of a pole is painted yellow, one-fifth is painted white and the remaining 7 metres is painted black. The length of the pole is :

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