Question

How much is the average salary of the 30 assembly workers? The foreman is paid a salary of Rs. 12,000.
(I) The total salary paid to the 30 assembly workers and the foreman is Rs. 312,000.
(II) The foreman's salary is 120% of the average salary of the 30 assembly workers.

• A. Statement (I) alone is sufficient, but statement (II) alone is not sufficient.
• B. Statement (II) alone is sufficient, but statement (I) alone is not sufficient.
• C. Both statements together are sufficient, but neither statement alone is sufficient.
• D. Each statement alone is sufficient.

Answer 1

Answer: (D)

Each statement alone is sufficient.

(I) $\Rightarrow$ Total salary of 30 assembly workers
$T_S=$ Total salary - salary of foreman and required average $=\frac{T_S}{30}$
(II) $\Rightarrow$ Foreman's salary $=12,000=120$% of average salary of assembly workers
$\Rightarrow \text{Average salary}=\frac{12,000\times 100}{120}$
Hence, each statement alone is sufficient to answer the question.