Question

Average age of 50 employees working in a departmental store is 30 years. In the next year, ten workers will retire. What will be the average age in the next year?(1) Retirement age is sixty years.
(2) There are 100 workers in the department

• A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient
• B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient
• C. BOTH statements TOGETHER are sufficient, but NEITHER statement alone is sufficient
• D. Statements (1) and (2) TOGETHER are NOT sufficient

Answer 1

The correct option is A Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient

Given: Sum of ages of employees =1500=1500
(1) ⇒⇒ In the next year, sum of ages =1500−10×59=1500−10×59 and remaining employees =50−10=40=50−10=40
Hence, average age in next year can be calculated.
(2) ⇒⇒ It is insufficient to answer the question.