ADITI Company Logical Reasoning Missing Character

Q. Each floor of a 3 storeyed building is occupied and a total of 15 people live in the building. How many live on the first floor?
1) The no. of people living in the first floor is an odd number
2) The no. of people living on the first floor double the number living on the second floor

Hint - Each item has a question followed by two statements :
Mark a: If the question can be answered with the help of statement "1" alone
Mark b: If the question can be answered with the help of statement "2" alone
Mark c: If the question can be answered with the help of both the statements but not with the help of either
statement by itself
Mark d: If the question cannot be answered even with the help of both the given statements

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ADITI Other Question
Q. Does winking improve eye sight?
1) During the process of winking the focal power of eyes improves
2) Experiments have shown that eye exercise lead to an improvement in eye sight

Answer: d because neither 1 or 2 is adequate.

Hint - Each item has a question followed by two statements :
Mark a: If the question can be answered with the help of statement "1" alone
Mark b: If the question can be answered with the help of statement "2" alone
Mark c: If the question can be answered with the help of both the statements but not with the help of either
statement by itself
Mark d: If the question cannot be answered even with the help of both the given statements Q. The sum of digits of a 5 digit no. is 10. The digit in the ten thousandth place is cube of that of units place.
what is the number.
1) The digits in the thousandth, hundredth and tenth place are equal
2) The digit in the units and tenth place are not equal

Hint - Each item has a question followed by two statements :
Mark a: If the question can be answered with the help of statement "1" alone
Mark b: If the question can be answered with the help of statement "2" alone
Mark c: If the question can be answered with the help of both the statements but not with the help of either
statement by itself
Mark d: If the question cannot be answered even with the help of both the given statements