Assertion (A): Two coins are tossed simultaneously. The probability of getting two heads, if it is known that at least one head comes up, is $$\frac{1}{3}$$.
Reason (R): Let E and F be two events with a random experiment, then $$\mathrm{P}(\mathrm{F} / \mathrm{E})=\frac{\mathrm{P}(\mathrm{E} \cap \mathrm{F})}{\mathrm{P}(\mathrm{E})}$$.
- A(a) Both (A) and (R) are true and (R) is the correct explanation of (A).
- B(b) Both (A) and (R) are true, but (R) is not the correct explanation of A.
- C(c) (A) is true and (R) is false.
- D(d) (A) is false, but (R) is true.
✓ Correct answer: A
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