Answer: Megan will say more numbers.
Step-by-step explanation:
Given: Megan counts by ones to 10.
So, the numbers counted by Megan=10 times 1
Therefore, Megan will say 10 numbers.
Lee counts by fives to 20.
So, the numbers counted by Lee=4 times 5 [∵20 is a multiple of 5, 5×4=20 ]
Therefore, Lee will say 4 numbers.
And 10>4
Therefore, Megan will say more numbers than Lee.