Madhya Pradesh Police Exam Model Paper 1

Question : 81 of 100

Marks: +1, -0

If a box contains 3 white cushions, 4 red cushions, and 5 blue cushions, what is the probability of selecting a white cushion if a cushion is selected?

Validate

Solution:

Given:
Number of white cushions = 3
Number of Red cushions = 4
Number of Blue cushions = 5
Formula:
Probability = Number of a favourable outcome/Total number of outcomes
P = n(E)/n(S)
Calculation:
Total number of cushions

= 3 + 4 + 5 = 12

∴ Probability of selecting a white

= 3{/}12 = 1{/}4

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