Question

How many sisters does Sunny have?
(I) Sunny is the only son of his parents.
(II) Sunny’s parents have three children.

• A. Only statement I alone is sufficient
• B. Only statement II alone is sufficient
• C. Statements I and II together are sufficient
• D. Either statement I or II alone is sufficient

Answer 1

The Correct Option is C

To determine the number of sisters Sunny has, we will evaluate each statement independently and then in conjunction. Statement I: Sunny is his parents' only son. This statement establishes that Sunny has no brothers but offers no information regarding the number of sisters. Consequently, Statement I is insufficient on its own. Statement II: Sunny's parents have three children. This statement indicates the total number of children but does not specify the gender distribution or the number of sisters. Therefore, Statement II is insufficient on its own. Combined Statements I and II: Statement I confirms Sunny has no brothers. Statement II states there are three children in total. Given Sunny is the sole son, the remaining two children must be daughters. Thus, combining both statements reveals Sunny has two sisters. Conclusion: Statements I and II, when combined, are sufficient.