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Friday, 9 October

JEE Main 2017 · MathsMultiple choiceSingle correctHardMulti-step

JEE Main 2 April 2017 (offline), Maths Q86

Question 86 of 90 in this shift, Maths question 26 of 30.

For three events A, B and C, P(Exactly one of A or B occurs) == P(Exactly one of B or C occurs) == P(Exactly one of C or A occurs) =14=\frac{1}{4} and P(All the three events occur simultaneously) =116=\frac{1}{16}. Then the probability that at least one of the events occurs, is :
  1. (1)716\frac{7}{16}Official answer
  2. (2)764\frac{7}{64}
  3. (3)316\frac{3}{16}
  4. (4)732\frac{7}{32}

Official answer

Option 1

CBSE answer key (25/04/2017, used for result).

Chapter
Probability
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA (CBSE ran the 2017 exam); answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.