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## Comment on

Avoiding Common Mistakes - Part II## At 3:25 in the example for no

In that case, no. of boys would be 0 and hence the combined statement also becomes insufficient.

## Great question.

Great question.

In this instance, the number of students can be assumed to be greater than 1, since the sentence states that there is a class of "students" (plural)

## is it generally safe to

## In MANY real-world questions,

In MANY real-world questions, the numbers are typically positive integers. That said, it isn't ALWAYS the case. For example if we're talking about the time it takes for a pump to fill a pool, we can have non-integer values for the time it takes, the rate at which the pump pumps water and the volume of water in the pool.

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