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Calculate the Revised Standard 2 points Hours of labour required to clean 55 rooms in the month of May. The workers at Super Cleaning Service Bhd have a standard wage rate of RMQDO per hour. At a virus quarantine centre. each worker is required to spend a standard 40 minutes to clean and sanitise each room. In May, 6 workers were hired to clean 55 rooms. Due to increased hygiene requirements, the company increased labour hour to 45 minutes. In addition. the wage rate per hour was raised by 15% to encourage workers to be more thorough with their cleaning work. The actual hours recorded in May was 155 hours. 0 220 hours 0 247.5 hours 0 165 hours 0 123.75 hours