Mathematics > 2003 > 40
WASSCE
The probability of a boy passing English and Mathematics tests are x and y respectively. Find the probability of the boy failing both tests.
A.
1 - (x - y) + xy
B.
1 - (x + y) - xy
C.
1 - (x + y) + xy
D.
1 - (x - y) - xy
Answer: C
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