Question

A spinner numbered 1 to 50 with equal size sectors is spun twice. Find the probability that the total for
the two spins is:
a 100
b 51
c 99
d 52
e 55

Answer 1

since only 50+50 = 100, the chance is 1/50 * 1/50 = 1/2500

any number can come up first, but only 1 second number will make the sum 51, so prob = 1/50

see what you can do with the others.