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Logical Reasoning
Number Series
(68-a)(68-b)(68-c)(68-d)(68-e)=725
find a+b+c+d
Read Solution (Total 11)
-
- here 725 can be write as
725=5*5*29*1*1 so we can take a,b,c,d,e values as 63,63,39,67,67 respectively.
so ans is a+b+c+d+e=63+63+39+67+67=299..
for a+b+c+d=232 - 10 years agoHelpfull: Yes(41) No(6)
- (68-a)(68-b)(68-c)(68-d)(68-e)=29*25
(68-a)(68-b)(68-c)(68-d)(68-e)=29*5*5*1
(68-a)(68-b)(68-c)(68-d)(68-e)=29*5*1*-1*-5
(68-a)=29 =>a=39
(68-b)=5 =>b=63
(68-c)=1 =>c=67
(68-d)=-1 =>d=69
(68-e)=-5 =>e=73
a+b+c+d=39+63+67+69=238 - 10 years agoHelpfull: Yes(9) No(7)
- ans is 238
- 9 years agoHelpfull: Yes(2) No(1)
- 1*2*2.5*5*29=725
a=67
b=66
c=65.5
d=63
e=39
hence, a+b+c+d+e=300.5 - 10 years agoHelpfull: Yes(1) No(1)
- more than 1 ans possible
- 10 years agoHelpfull: Yes(1) No(1)
- So 5×5×29×1×1.....
63+63+67+67+39=239
or
25×29×1×1×1....
67+67+67+39+43=283 - 9 years agoHelpfull: Yes(1) No(0)
- 5*5*29
63+63+39+67=232 - 10 years agoHelpfull: Yes(0) No(6)
- first of all factorize 725- >> 29*5*5*1*1
now try to manipulate all the factors in the form of the equation
(68-63)*(68-63)*(68-39)*(68-67)*(68-67)
a =63
b=63
c=39
d=67
e=67
now a+b+c+d = 232 - 10 years agoHelpfull: Yes(0) No(0)
- firstly we factorise 725 then we find 5*5*29
then we put in equation
(68-63)(68-63)(68-39)(68-67)(68-67)=725
from where we find the value of
a=63 b=63 c=39 d=67 e=67
a+b+c+d=63+63+39+67=232 - 10 years agoHelpfull: Yes(0) No(0)
- please share correct ans
- 9 years agoHelpfull: Yes(0) No(0)
- ans is 232
since,
(68-a)(68-b)(68-c)(68-d)(68-e)=725
=>(68-a)(68-b)(68-c)(68-d)(68-e)=29*5*5*1
=>(68-a)(68-b)(68-c)(68-d)(68-e)=29*5*5*1*1
so,
(68-a)=29 =>a=39
(68-b)=5 =>b=63
(68-c)=5 =>c=63
(68-d)=1 =>d=67
(68-e)=1 =>e=67
So,
a+b+c+d = 39+63+63+67 = 232 - 9 years agoHelpfull: Yes(0) No(1)
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