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Logical Reasoning
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Q. If y = x +2, Find the range of real values of y satisfying the inequalities 16x - 6 > 42 and 7x - 24 < 60"
Option
a) 5 < y < 14
b) 3 < y < 12
c) 1 < y < 10
d) y < 10
Read Solution (Total 18)
-
- 16x – 6 > 42 => 16x >48 => x>3 ...(1)
And 7x – 24 < 60 = > 7x x 3 and y - 2 5 or y < 14
Combining the above range, we get, 5 < y < 14 - 11 years agoHelpfull: Yes(20) No(4)
- Firstly we take:
16x - 6 > 42 and we will reduse it to x+2 form at Left hand side so that it can be written in the form of y as y=x+2.
16x-6>42
x-(6/16)>(42/16)
addind 2 both sides:
x-(6/16)+2>(42/16)+2
hence,x+2>5
as y=x+2
so,y>5
similarly,solve 7x-24 - 11 years agoHelpfull: Yes(9) No(1)
- Ans a
Given y=x+2 (then x=y-2)
16 (y-2) - 6 > 42 ( this eq results y>5)
7 (y-2) -24 < 60 ( this eq results y - 11 years agoHelpfull: Yes(9) No(1)
- ans is option a
- 11 years agoHelpfull: Yes(4) No(0)
- option a is correct
- 11 years agoHelpfull: Yes(1) No(0)
- 16x-6>42
16x>48
x>3........(i)
similarly from 7x-24 - 10 years agoHelpfull: Yes(1) No(0)
- ans is (a)
- 10 years agoHelpfull: Yes(1) No(0)
- ans = (a)542 -> x>42/16 -> x>3
eq2- 7x-24 - 11 years agoHelpfull: Yes(0) No(0)
- 16x-6>42 => x>48/16 =>x>3.. 7x-247x x
- 11 years agoHelpfull: Yes(0) No(0)
- ans a)
check all options like this 5 - 11 years agoHelpfull: Yes(0) No(0)
- Option a is the correct one.
- 11 years agoHelpfull: Yes(0) No(0)
- a is correct
- 11 years agoHelpfull: Yes(0) No(0)
- 16x-6>42 and 7x-243 and x5 and y
- 11 years agoHelpfull: Yes(0) No(0)
- solve 16x-6>42 and 7x-24>60 we get x>3 and x
- 11 years agoHelpfull: Yes(0) No(2)
- ans a bcj it sholud be less than 14
- 10 years agoHelpfull: Yes(0) No(1)
- Answer is a
- 10 years agoHelpfull: Yes(0) No(0)
- Can anyone explain it clearly?
- 8 years agoHelpfull: Yes(0) No(0)
- y=x+2 i.e x=y-2 sustitute x value in 16x-6>42
16(y-2)-6>42
16y-32-6>42
16y-38>42
16y>80
y>5
like wise in 7x-24 - 8 years agoHelpfull: Yes(0) No(0)
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