Answer:
The correct option is B. Sixty square root five
Step-by-step explanation:
Five square root five : 5√5
Six square root four : 6√4
Now, √4 = 2
⇒ 6√4 = 6 × 2 = 12
We need to find the product of these two numbers
⇒ 5√5 × 12 = 60√5
Therefore, The correct option is B. Sixty square root five