Question Paper from: SBI PO Mains 2017

If x number of yellow balls from bag B are taken and placed into bag A and 20% of black balls from bag A are taken and placed into in bag B. If we pick one ball from bag B then the probability that the ball is of black colour is 11/26. Then find the value of x?
1:
2
2:
4
3:
1
4:
1/2
5:
3/2
Solution:
Chapter Name: Probability
Difficulty Level: Moderate

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