Question

Two friend Himanshu and Naman appeared in an exam. The probability that Himanshu will Qualify the exam is 1/20 and Naman will Qualify the exam is 1/10. The probability that both will qualify the exam is 1/50.Find the probability that only one of them qualify the exam.

A 7/11
B 13/100
C 7/100
D 11/100
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