A factory employs skilled workers, unskilled workers and clerks in the proportion 8 : 5 : 1, and the wages of a skilled worker, an unskilled worker and a clerk are in the ratio 5 : 2 : 3. When 20 unskilled workers are employed, the total daily wages of all amount to Rs 318. Total wages paid to each category of workers are

• A. Rs 240, Rs 60, Rs 18
• B. Rs 200, Rs 90,Rs 28
• C. Rs 150, Rs 108, Rs 60
• D. Rs 250, Rs 50, Rs 18