Answer:
There were 199 birds flying ⇒ F
Explanation:
Assume that the number of birds is x
∵ They said "we need half of us plus you to make us hundred"
- That means one-half x plus 1 equals hundred
∴
x + 1 = 100
- Subtract 1 from both sides
∴
x = 99
- Multiply both sides by 2
∴ x = 198
∵ The number of bird were flying is x + 1
∴ The number of bird were flying is 198 + 1 = 199
There were 199 birds flying
To check the answer they said we need half of them plus you to bee hundred
one-half 198 is 99 + 1 = 100, so the answer that x = 198 is correct
The number of birds were flying are 198 + the bird they met in their way, so there were 199 birds flying