Question

Which of the following is not a leap year ?

• A. $400$
• B. $700$
• C. $1200$
• D. $1000$

Answer 1

Answer: (B)

$700$

Every year divisible $4$ is a leap year, if it is not a century.

Every $4^{th}$ century is a leap year, but no other century is a leap year.

$800,1200$ and $2000$ comes in the category of $4^{th}$ century(such as $400,800,1200,1600,2000$ etc)

Hence, $800,1200$ and $2000$ are leap years

$\therefore 700$ is not a $4^{th}$ century, but it is a century. Hence it is not a leap year.

So, the answer is ${}^{\prime }B={700}^{\prime }$.