Question
I. x2 + 13x + 42 = 0 II. y² + 13y
+ 40 = 0 In each of the following questions, there are two equations. You have to solve both equations and mark the correct answer.Solution
I. x2 + 13x + 42 = 0 => x2 + 7x + 6x + 42 = 0 => x(x + 7) + 6(x + 7) = 0 => (x + 7) (x + 6) = 0 => x = -7, -6 II. y² + 13y + 40 = 0 => y2 + 8y + 5y + 40 = 0 => y(y + 8) + 5(y + 8) = 0 => (y + 8) (y + 5) = 0 => y = -8, -5 Hence, the relationship cannot be established between x and y.
Statements:
No cabin is a room.
All rooms are houses.
No house is a flat.
Some flats are apartments.
Concl...
Statements:
Only a few Novels are Journals.
Only a few Journals are Booklets.
All Booklets are Magazine.
Some Booklets are ...
Statements: Some pins are mirrors.
All mirrors are boxes.
Conclusions:I. Some boxes are pins.
II. Some boxes are mirrors.
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...
Statements:
Some sheep are bull
Only a few bull are cow
No bull is dog
Conclusions:
I. Some dog are not cow
II. All bull can be cow
Statements:
Some hotels are rooms.
Some rooms are keys.
All keys are bungalows....
Statements : All blues are whites.
Some whites are reds.
All yellows are reds.
Conclusions : I. Some reds not being whites is a p...
Statements:
No Addition is a Multiplication.
Some Multiplication are Subtraction.
All Subtraction are Division.
Only few Div...
Conclusions:
I. Some Bikes are not Cars.
II. Every Cars can be Cycles.
Statements:
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at varianc...