JEE Mains · Maths · STD 11 - 14. probability
One die has two faces marked 1 , two faces marked 2 , one face marked 3 and one face marked 4 . Another die has one face marked 1 , two faces marked 2 , two faces marked 3 and one face marked 4. The probability of getting the sum of numbers to be 4 or 5 , when both the dice are thrown together, is
- A \(\frac{2}{3}\)
- B \(\frac{1}{2}\)
- C \(\frac{4}{9}\)
- D \(\frac{3}{5}\)
Answer & Solution
Correct Answer
(B) \(\frac{1}{2}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{a}=\) number or dice 1 \(\mathrm{b}=\) number on dice 2 \((a, b)=(1,3),(3,1),(2,2),(2,3),(3,2),(1,4),(4,1)\) Required probability…
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