Question

What is the average daily wages of a worker who works for five days; he made Rs. 80 the first day?
Statement I I. The worker made a total of Rs. 400 for the first four days of work.
Statement II II. The worker made 20% more each day than he did on the previous day.

• A. If the data in statement I alone are sufficient to answer the question, while the data in statement II alone are not sufficient to answer the question.
• B. If the data in statement II alone are sufficient to answer the question, while the data in statement I alone are not sufficient to answer the question.
• C. If the data either in statement I alone or in statement II alone are sufficient to answer the question.
• D. If the data even in both statements I and II together are not sufficient to answer the question.

Hint:

When working with averages and percentages, always break down the information provided and check if you can find the total or calculate missing values step by step.

Answer 1

The Correct Option is B

- Statement I just tells us the total of Rs. 400 for the first four days of work, so the average daily wages of five days cannot be determined.
- Statement II states that the worker made 20% more each day, and we know that he earned Rs. 80 the first day. So we can calculate the wages for five days and hence the average. Hence, statement II alone is sufficient to answer the question.
Thus, the correct answer is (B).