Maths-
General
Easy
Question
Assertion: There are three doors to a room The number of ways in which a student can enter the room and leave it by a different door is 6.
Reason: If an operation can be performed in 
ways and another operation can be perfO rmed in 
ways thenthe two operations in succession can be performed in mn ways.
- A is true, R is true and R is the correct explanation for A
- A is true, R is false and R is the not the correct explanation for A
- A is true, R is false
- A is false, R is true.
The correct answer is: A is true, R is true and R is the correct explanation for A
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maths-
Assertion(A): The number of quadratic expressions with the coefficients drawn from the set {0,1,2,3} is only 48 but not 64.
Reason(R): The coefficient 
inthe quadratic expression 
can not be 
’
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Reason(R): The coefficient inthe quadratic expression can not be ’
maths-General
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chemistry-General
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Enthalpy of CH4+ 
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chemistry-General
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chemistry-General
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The heat of combustion of ethanolina bomb calorimeteris–670.48Kcalmol–1at25°C.Whatis DE at 25°C for the reaction?
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chemistry-General
