Answer:
Step-by-step explanation:
Choosing 247 things from a 250 would have the same number of possibilities as choosing 3 things from 250.
250C247 = 2,573,000
and
250C3 = 2,573,000
*Notice 247+3 = 250
To generalize the situation,
xCy = xC(x-y)
Here we'd have
250C247 = 250C(250-247)
or
250C247 = 250C3
