Question

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 is enlarged 20000 times only, what would be its enlarged length?

Answer 1

the enlarged lenght is 5000

Answer 2

Answer:

2 cm

Step-by-step explanation:

Solution:

Let the actual length of bacteria be ‘x’

& enlarged length be y cm.

Here the number of times  the photograph of bacteria was enlarged  & the length of the bacteria are in direct

proportion.

5/50000=x /1

X= 1/10000

x=0.0001 cm 

 x=10^-4

Hence, the actual length of bacteria is

10^-4

Let the length of the bacteria when the

photograph of bacteria was enlarged 20000 times be y

5/50000 = y/20000

y × 50000 = 5× 20000

y= 5× 20000/50000

y= 2 cm.

Hence, the enlarged length of the bacteria

is 2 cm.