Could you help me with this math question please?

Sly_Si
Tue, 27 May 2008 05:08:58 +0000

It’s often a convenient way of doing multiple choice math tests. You can usually eliminate some of the answers on the grounds that they just can’t be the answer. In this case, you can eliminate all but one of them. It’s still a good idea to run the numbers and make sure the remaining one is actually right (instead of just checking that the others are all wrong), but if you’re short on time or want to confirm your answer, that method works well.