A photograph of a bacteria enlarged 50000 times attains a length of 5 cm. What is the actual length of the bacteria? If the photograph enlarges 20000 times only what would be the enlarged length?
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Solution
Let x be bacteria size,then 50000x=5cm x=5/50000 x=1/10000=10^-4cm if it is enlarged 20000 times,then 10^-4×20000=2cm Enlarged length will be 2cm.