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Numerical Ability
Algebra
If 3y + x > 2 and x + 2y <= 3 , What can be said about the value of y?
Option
A. y = -1
B. y >-1
C. y <-1
D. y = 1
Read Solution (Total 10)
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3y + x > 2 -----(1)
x + 2y < = 3
=> x + 2y + y < = 3 + y
=> x + 3y < = 3 + y -----(2)
from (1)&(2)
2 < 3y + x < 3 + y
=> 2 < 3 + y
=> -1 < y
=> y > -1
B. y > -1 - 10 years agoHelpfull: Yes(35) No(0)
- option b
x+2y = 3
x =3-2y
putting the value of x into other equation,
3y+3-2y > 2
y > -1 - 10 years agoHelpfull: Yes(3) No(0)
- 3y+x>2 so x>2-3y (i) ;
x+2y - 10 years agoHelpfull: Yes(1) No(0)
- as 3y+x>2 so x>2-3y (i)
and x+2y - 10 years agoHelpfull: Yes(0) No(0)
- ans:A
by solving given 2 eqns we will get y> - 10 years agoHelpfull: Yes(0) No(0)
- Multiply the second equation with -1 then it will become - x - 2y≥ - 3. Add the equations. You will get y > -1.
- 10 years agoHelpfull: Yes(0) No(0)
- 3y+x>2---(1)
x+2y2
=>y>-1 - 10 years agoHelpfull: Yes(0) No(0)
- 3y + x > 2 -----(a)
x + 2y < = 3
=> x + 2y + y < = 3 + y
=> x + 3y < = 3 + y ---(b)
using a and b both
2 < 3y + x - 10 years agoHelpfull: Yes(0) No(0)
- it is y=1;
3(1)+1is>2;(if x=1)
1+2*(1) - 10 years agoHelpfull: Yes(0) No(0)
- as 3y+x>2 OR x+3y-2>0........................1
next x+2y0 OR Y>-1 - 9 years agoHelpfull: Yes(0) No(0)
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