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Numerical Ability
Algebra
(1/10)18 - (1/10)20 = ?
(a) 99/1020
(b) 99/10
(c) 0.9
(d) none of these
Read Solution (Total 5)
-
- (d) none of these
(1/10)18 - (1/10)20 = = (1/10)(18-20) = -2/10 = -1/5 ... so none of these
If
(1/10)18 - (1/10)20 =
means
(1/10)^18 - (1/10)^20
Then
(1/10)^18 - (1/10)^20 = [(1/10)^18]*(1-1/100) = [(1/10)^18]*(99/100)... so none of given options. - 12 years agoHelpfull: Yes(6) No(0)
- none of these
1.8-2.0=-0.2 - 12 years agoHelpfull: Yes(1) No(0)
- (18/10)-(20/10)
(18-20)/10
(-2)/10
-5
the answer is none of these - 12 years agoHelpfull: Yes(0) No(1)
- d)none of these
0.8-2.0=0.2=1/5 - 12 years agoHelpfull: Yes(0) No(0)
- take commom 1/10 from both side:
=> (1/10)*[18-20]
=> (1/10)*(-2)
=> 0.2 is answer
so. option (d) none of these is right - 9 years agoHelpfull: Yes(0) No(0)
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