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Question
The Bacteria enlarge over a period of time. It enlarged 60000 times and attained a length of 3 cm. What would its length be if it had enlarged only 10000 times?
The Bacteria enlarge over a period of time. It enlarged 60000 times and attained a length of 3 cm. What would its length be if it had enlarged only 10000 times?
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Solution
The correct option is B 0.5 cm
Let the required length of bacteria be x.
Given, when bacteria enlarges 60000 times the length it attains = 3cm.
As the number of times bacteria gets enlarged its length gets increased. So it is in direct proportion.
⇒ 60000 × x = 10000 × 3 (by cross-multiplicaction)
⇒ x = 3 × 1000060000
x = 0.5 cm
0.5 cm
Let the required length of bacteria be x.
Given, when bacteria enlarges 60000 times the length it attains = 3cm.
As the number of times bacteria gets enlarged its length gets increased. So it is in direct proportion.
⇒ 60000 × x = 10000 × 3 (by cross-multiplicaction)
⇒ x = 3 × 1000060000
x = 0.5 cm
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