51 is 340% of what?

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Answer 1 · 2017-04-03T07:07:50

15

I hope you know that if some number #a# is some #c%# of a number #b# then #color(red)(a/b*100 = c)#

Let #51# be #340%# of some number say #color(red)(x)#.

Then,

#51/x*100 = 340#

#=> 51/340*100 = x#

#=> x = 15#

Hence #51# is #340%# of #15#.