There are 80 birds in the flock of cardinals.
Solution:
Given:- A flock of 20 seagulls or we can say
Number of seagulls in a flock = 20
The new flock is no larger than 100 birds
So, let Total number of birds of new flock = 100
To find out the number of birds in cardinals we have to subtract number of seagull in flock from total number of birds of new flock.
Number of birds in cardinal = Total number of birds of new flock - Number of seagulls in a flock
Number of birds in cardinal = 100 – 20 =80
Hence there are 80 birds in the flock of cardinals.
