Answer:
Andre can answer 1.5 multiplication facts in each second.
Step-by-step 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 = [tex]\frac{135}{90}=1.5[/tex]
Hence Andre can answer 1.5 multiplication facts in each second.