0.2% of what number is 6.4?

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Answer 1 · 2016-05-18T20:40:53

so 0.2% of 3200 = 6.4

Let the unknown be #x#

Then #0.2/100xx x=6.4#

Multiply both sides by #100/0.2#

#0.2/100xx100/0.2 xx x= 6.4xx 100/0.2#

#0.2/0.2xx100/100xx x =6.4/0.2xx100#

#1xx1xx x= 32xx 100#

#x=3200#