Question

A black and white photograph is 70 percent black and 30 percent white. it is enlarged three times. the percent of white in the enlargement is

Answer 1

More time it is stretched the more it will incrase

Answer 2

Answer:

66.666666

Step-by-step explanation:

let the white be 30/100 x and new be 90/100 x

White enlargement = ( 90/100 x - 30/100 x ) / 90/100 x

= 66.666 %

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