Answers for quant question set 26/04/2016

ANSWERS:

6. (5)
Required Probability = 1 – Probability that none of the four balls is violet
         =  1 - 11C4/15C4 = 69/91

7. (3)
Required Probability = (4C2 * 3C1)/ 15C3 = 18/455

8. (1)
Required Probability = (2C1 * 4C2 * 6C1)/15C4 = 24/455

9. (2)
Required probability = 6C2/15C2 = 1/7

10. (4)
Required probability = (2C2 + 3C2)/15C2 = 4/105

11. (3)
Total = 200 + 500 = 700

12. (3)
Required ratio = 200 : 240 = 5 : 6

13. (1)
Required difference = 200 – 100 = 100

14. (4)

15. (2)
Required percentage = 200%

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