There are two bags containing white and black balls. In the first bag there…
PYQ TCS NQT 2026
There are two bags containing white and black balls. In the first bag there are 6 white and 4 black balls and in the second bag, there are 5 white and 6 black balls . One ball is drawn at random from any of these two bags. Find the probability of this ball being black .
- A.
52/ 55
- B.
7/54
- C.
21/77
- D.
26/55
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