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4 thumb drives and 1 compact disk have a total capacity of 9 gigabytes. 5 thumb drives have 9 more gigabytes than 1 compact disk. find the capacity of 1 thumb drive and the capacity of 1 compact disk.

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Answer:

Explanation:suppose thumb drives can be represented by d

suppose CD's can be represented by c

according to given condition:

4d+1c=9gb---->(1)

&

5d-9=1c--->(2)

add both the equations:

4d+1c=9

5d-1c=9

------------

9d=18gb

t=2gb

now put t=2gb in 2nd equation

5(2)-9=1c

10-9=1c

1gb=1c

so from the results we can say that each thumb can hold 2gb and each CD can hold 1gb.

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