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If a and b are odd numbers, then which of the following is even ?
Answer & Solution
Correct Answer:
Option
D
a + b + 2ab is even
Explanation : Sum of two odd number is even number and multiplication of two odd number with 2 always given an even number.
Alternate :
Put , a = 3, b = 5, option (D) will satisfy
Explanation : Sum of two odd number is even number and multiplication of two odd number with 2 always given an even number.
Alternate :
Put , a = 3, b = 5, option (D) will satisfy
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