EM-2302

Standard form

E Math · Secondary 4 · Hard · Standard form

A number of files, each of size 3.2 megabytes, are stored on a memory card of capacity 320 gigabytes. Both values are given correct to 2 significant figures. Using

1\text{ GB} = 10^9\text{ bytes}

and

1\text{ MB} = 10^6\text{ bytes}

, find the largest possible number of files that can be stored. Give your answer in standard form, correct to 3 significant figures.

$1.03\times10^5$
$1.02\times10^4$
$1.02\times10^6$
$1.02\times10^7$

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