If t is an odd integer ,which of the following must be an even integer ?

A t-2

B 2t+3

C 4t+1

D 3t+1

Solution

Correct Answer: Option D

মনে করি , t=3
অতএব , t-2=3-2=1 যা বিজোড়
2t+3=2.3+3=6+3 =9 যা বিজোড়
4t+1=4.3+1=13 যা বিজোড়
3t+1=3.3+1=10 যা বিজোড়


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