Question

Andre has been practicing his math facts.He can now complete 135multiplication facts in 90 seconds if andre is answering questions at a constant rate,how many facts can he answer per second?

Answer 1

Andre can answer 1.5 multiplication facts in each second.

Explanation:

Given:

Number of multiplication facts completed = 135

Number of second took to complete multiplication facts = 90 seconds.

We need to find the Number of facts answered per second.

Solution;

Now we know that;

In 90 seconds = 135 multiplication facts.

So in 1 second = Number of fact answered in 1 second

By Using Unitary method we get;

Number of fact answered in 1 second =
`(135)/(90)=1.5`

Hence Andre can answer 1.5 multiplication facts in each second.