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If 5 x 3 x 2 = 13, 6 x 4 x 3 = 21, 7 x 5 x 4 = 31, 8 x 6 x 5 = 43, 9 x 7 x 6 = 57 Then 10 x 8 x 7 = ??

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If 5 x 3 x 2 = 13, 6 x 4 x 3 = 21, 7 x 5 x 4 = 31, 8 x 6 x 5 = 43, 9 x 7 x 6 = 57 Then 10 x 8 x 7 = ??
posted Nov 29, 2014 by anonymous

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17 Answers

0 votes

5*3 - 2 = 13
6*4 - 3 = 21
7*5 - 4 = 31
8*6 - 5 = 43
9*7 - 6 = 57
10*8 - 7 = 73

Ans :- 73

answer Mar 10, 2016 by Neha Gupta
0 votes

we will have

10 x 8 x 7 = 10*8-7=80-7=73

answer Mar 10, 2016 by Ashutosh Kumar Anand
0 votes

((5*3*2)/3)+3=13
((6*4*3)/4)+3=21
((7*5*4)/5)+3=31
((8*6*5)/6)+3=43
((9*7*6)/7)+3=57
((10*8*7)/8)+3=73

answer Mar 18, 2016 by Mitrak
0 votes

5 x 3 x-2 = 13,
6 x 4 x-3 = 21
and so on...
similarly
10 x 8 -7 = 73
ans:73

answer Mar 23, 2016 by Saravanakumar
0 votes

**If 5 x 3 x 2 = 13, 6 x 4 x 3 = 21, 7 x 5 x 4 = 31, 8 x 6 x 5 = 43, 9 x 7 x 6 = 57 Then **10 x 8 x 7 = ??****

5 x 3 x 2 = 13[5*2+3-0=13];
6 x 4 x 3 = 21[6*3+4-1=21];
7 x 5 x 4 = 31[7*4+5-2=31];
8 x 6 x 5 = 43[8*5+6-3=43];
** 10 x 8 x 7 = ??** [10*7+8-4=74].\
so ans is 74.

answer Apr 1, 2016 by Ajay Kumar
0 votes

**If 5 x 3 x 2 = 13, 6 x 4 x 3 = 21, 7 x 5 x 4 = 31, 8 x 6 x 5 = 43, 9 x 7 x 6 = 57 Then **10 x 8 x 7 = ??****

5 x 3 x 2 = 13[5*2+3-0=13];
6 x 4 x 3 = 21[6*3+4-1=21];
7 x 5 x 4 = 31[7*4+5-2=31];
8 x 6 x 5 = 43[8*5+6-3=43];
9 x 7 x 6 = 57[9*6+7-4=57];
** 10 x 8 x 7 = ??** [10*7+8-5=73].
so ans is 73.

answer Apr 1, 2016 by Ajay Kumar
0 votes

ANSWER: 73
5*3-2=15-2=13
6*4-3=24-3=21
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the answer is :::
10*8-7=80-7=73

answer Sep 15, 2017 by Mogadala Ramana
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