The decimal form of the colored portion of the image is

0.6

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0.5

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0.04

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0.4

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Solution

The correct option is D 0.4

Fraction of colored parts = $\frac{N u m b e r o f c o l o u r e d p a r t s}{T o t a l n u m b e r o f p a r t s} = \frac{4}{10}$

To convert $\frac{4}{10}$ into decimal, divide 4 by 10.
Division by 10 means, the decimal point jumps by 1 place to the left of 4

So, $\frac{4}{10}$ becomes $0.4$

∴ The decimal form of the colored part is $0.4$

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The decimal form of the colored portion of the image is

The correct option is D 0.4 Fraction of colored parts = Number of coloured partsTotal number of parts=410 To convert 410 into decimal, divide 4 by 10. Division by 10 means, the decimal point jumps by 1 place to the left of 4 So, 410 becomes 0.4 ∴ The decimal form of the colored part is 0.4