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Number System
What is the value of
44444445*88888885*44444442*44444438/44444448^2
a)88888883 b)88888884 c)88888888 d)44444443
Read Solution (Total 3)
-
- take x=44444444
that equ.can be written as- (x+1) (2x-3) (x-2)+(x-6) / x^2
solving equation we get 2x-5
substitute x=44444444 in above equation we get- 88888883
- 9 years agoHelpfull: Yes(24) No(12)
- through digital sum concept::
44444445= 33; 3+3=6
88888885= 61; 6+1=7
44444442= 30; 3+0=3
44444438= 35; 3+5=8
In numerator digital sum = 6*7*3*8 =1008 = 1+0+0+8=9
In denominator digital sum =36=(3+6)^2 = 81; 8+1=9
numerator /denominator = 9/9=1
According to options 88888888 =8+8+8+8+8+8+8+8=64; 6+4=10; 1+0= 1
see in question and answer option is same so C is correct..
#GOPI
- 9 years agoHelpfull: Yes(11) No(13)
- 444444445*88888885*44444442*44444438=44444448*44444448*x
Digital sum
33*61*30*35=36*36*x
6*7*3*8=9*9*x
42*3*8=81*x
6*3*8=9*x
18*8=8*x
9*8=9*x
72=9*x
9=9*x
A)88888883 sum is 59
5+9=14
1+4=5
9*x=9*5=45
4+5=9
Then 9=9
Option A is correct ans - 6 years agoHelpfull: Yes(0) No(1)
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