Concept:A word problem on fractions tests the ability to understand parts of a whole and to apply that understanding to find missing information from given data.
Explanation:The problem states that 20 cupcakes remain after eating
52​ of the total.
- Students must first understand that the whole is unknown and the fractional part (eaten) is given. They need to find the whole from a fractional part. This assesses option (a).
- They also need to connect the numbers: the 20 leftover represents
1−52​=53​ of the total. This requires understanding the relationship between the eaten part, the leftover part, and the total. This assesses option (b).
- The problem is in simple English and does not test advanced reading skills; option (c) is not the main focus.
- The problem has only one correct answer, so option (d) is incorrect.
Answer:B. (a) and (b)