Question

Which of the following pair of numbers add to give a number greater than 300?

• A. 197 and 198
• B. 101 and 99
• C. 137 and 133
• D. 126 and 127

Answer 1

The correct option is A 197 and 198

197 and 198 are both close to 200.
Thus, the sum $197+198$ is best estimated by the sum $200+200=400,$ which is greater than 300.

But, the sum of 101 and 99 is best estimated by $100+100=200,$ which is less than 300.

The sum of 137 and 133 can be estimated by $100+100=200,$ less than 300.

Similarly, the sum $126+127$ is estimated by $100+100=200,$ which is less than 300.