Let's analyze each statement:
Statement I:
● Sum of two digits of a number is 10.
● The ratio between the two digits is 1:4.
Statement II:
● Product of two digits of a number is 16.
● Quotient of the two digits is 4.
Now, let's consider each statement separately:
Statement I:
From the first part, "Sum of two digits of a number is 10," we can have multiple pairs of digits that sum up to 10, such as (1, 9), (2, 8), (3, 7), and so on. The ratio between the two digits being 1:4 does not uniquely determine the original number.
Statement II:
From the second part, "Product of two digits of a number is 16," we can have multiple pairs of digits that multiply to 16, such as (1, 16), (2, 8), and (4, 4). The quotient of the two digits being 4 does not uniquely determine the original number.
Now, let's consider both statements together: When we consider both statements together, we can narrow down the possibilities a bit. The sum of the digits being 10 and the product of the digits being 16 means that the two digits must be 2 and 8. However, this still doesn't uniquely determine the original number because we don't know their order. Since even with both statements together, we cannot uniquely determine the original number,
So, the correct option is: (D) the data even in both statements I and II together are not sufficient to answer the question.