99 Percentile Qs Bank for JEE MainMathematicsProbability
In a non-leap year, the probability of getting 53 Sunday or 53 Tuesday or 53 Thursday is
Options
- A1 7
- B2 7
- C3 7
- D4 7
Correct answer
C. 3 7
Step-by-step solution
In non-leap year, there are 365 days i.e. 52 complete weeks and 1 extra day. That day can be any of 7 days. P(53 Sunday )=P( Last 1 day Sunday )= 1 7 Similarly, P(53 Tuesday )= 1 7 aligned & P(53 Thursday )= 1 7 & Probability = 1 7 + 1 7 + 1 7 = 3 7 . aligned