[Question]: Hanna has twice as many erasers as Rachel. Rachel has three less than one-half as many erasers as Tanya has red erasers. If Tanya has 20 erasers, and half of them are red, how many erasers does Hanna have?
[Answer]: Half of Tanya's 20 erasers are red, so she has 20 / 2 = 10 red erasers. One - half as many erasers as Tanya has red erasers is 10 / 2 = 5 red erasers. Rachel's three less than one - half as many erasers as Tanya's red erasers, which is 5 - 3 = 2 erasers. Hanna has twice as many erasers as Rachel, for a total of 2 * 2 = 4 erasers.
So the answer is 4.

[Question]: Georgie is a varsity player on a football team. He can run 40 yards within 5 seconds. If he can improve his speed by forty percent, how many yards will he be able to run within 10 seconds?
[Answer]: The additional yard he will be able to run to after improving his speed is 40 x 40 / 100 = 16 yards. So the total yard he will be able to run to after improving his speed is 40 + 16 = 56 yards in 5 seconds. Therefore the total yards he will be able to run to within 10 seconds is 56 x 2 = 112.
So the answer is 112.

[Question]: Carlos and Diego are racing around the block. Carlos runs around the entire block in 3 minutes. Diego runs around half the block in 2.5 minutes and then is tripped by a dog and can't finish. Assuming he kept up the same speed the entire race, what would've been the average time in seconds for the racers?
[Answer]:
If he finished the race, it would've taken 5 minutes because 2.5 x 2 = 5. Their total time would've been 8 minutes because 3 + 5 = 8. The average would've been 4 minutes because 8 / 2 = 4. The average time in seconds would've been 240 because 4 x 60 = 240.
So the answer is 240.