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# If 840 is 21 percent of c, what is 47% of c?

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Math Expert
Joined: 02 Sep 2009
Posts: 55150
If 840 is 21 percent of c, what is 47% of c?  [#permalink]

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25 Nov 2018, 23:42
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Difficulty:

15% (low)

Question Stats:

100% (01:03) correct 0% (00:00) wrong based on 18 sessions

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If 840 is 21 percent of c, what is 47% of c?

A. 705
B. 1,175
C. 1,410
D. 1,640
E. 1,880

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Re: If 840 is 21 percent of c, what is 47% of c?  [#permalink]

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25 Nov 2018, 23:53
If 840 is 21 percent of c, what is 47% of c?

840 =21%C
C=840*100/21
C =4000

47%*4000 = 1880 =E
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Re: If 840 is 21 percent of c, what is 47% of c?  [#permalink]

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25 Nov 2018, 23:54
840 = 21/100 C

C = 40*100 = 4000

47/100*4000 = 40*47 = 1880

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Re: If 840 is 21 percent of c, what is 47% of c?   [#permalink] 25 Nov 2018, 23:54
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