The correct answer is A. Rs. 321.
The General Manager’s commission is 10% of the net profit after charging the Works Manager’s commission. The Works Manager’s commission is 5% of the net profit after charging the General Manager’s commission.
The net profit after charging the Works Manager’s commission is 95% of the original profit. The net profit after charging the General Manager’s commission is 90% of the original profit.
The Works Manager’s commission is 5% of 90% of the original profit. This is equal to 0.05 * 0.9 * 7500 = 337.5.
Since the commission is a percentage, it is rounded up to the nearest integer. Therefore, the Works Manager’s commission is Rs. 321.
Here is a step-by-step solution:
- Calculate the net profit after charging the Works Manager’s commission:
Net profit after charging Works Manager’s commission = 95% of original profit = 0.95 * 7500 = 7125
- Calculate the net profit after charging the General Manager’s commission:
Net profit after charging General Manager’s commission = 90% of net profit after charging Works Manager’s commission = 0.9 * 7125 = 6397.5
- Calculate the Works Manager’s commission:
Works Manager’s commission = 5% of net profit after charging General Manager’s commission = 0.05 * 6397.5 = 319.875
- Round the Works Manager’s commission to the nearest integer:
Works Manager’s commission = 321