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CBSE Notes 2011-2012 » XI-Maths

# Mathematical Reasoning

## State whether "OR" used in the following statements is "exclusive" or "inclusive". "A lady gives bir...

State whether "OR" used in the following statements is "exclusive" or "inclusive". "A lady gives birth to a baby boy or a baby girl."

## Write the contrapositive of the following statement, "If number is divisible by 9, then it is divisi...

Write the contrapositive of the following statement, "If number is divisible by 9, then it is divisible by 3." '

## Write tne converse of the statement, "If a number n is even, then >r is even."

Write tne converse of the statement, "If a number n is even, then >r is even."

## Check whether the following statement is true or nor, "If x, y are odd natural numbers, then xy is a...

Check whether the following statement is true or nor, "If x, y are odd natural numbers, then xy is an odd natural number."