R.S. Sharma, an industrial engineer made random ‘snap’ observations of the work of four clerk-cum-typists (CT, for short) in his branch office over a period of ten days. The three typists were present for all the days during this observation. Clerk-cum-typists engage in various activities, one of which is typing. Sharma’s observations are given below:

Day No. of Observations No. of Typing Observations CT-1 CT-2 CT-3 CT-4 CT-1 CT-2 CT-3 CT-4 1 10 10 10 10 3 2 4 1 2 15 15 15 15 8 7 3 8 38 8 8 8 2 4 1 4 4 18 18 18 18 5 6 9 4 5 11 11 11 11 3 4 3 3 69 9 9 9 4 2 3 1 7 14 14 14 14 2 5 3 6 8 13 13 13 13 3 2 5 4 9 10 10 10 10 3 5 2 4 10 9 9 9 9 4 3 3 2 Overall ratings of the CTs in the ‘typing’ activity, as estimated by Sharma, were 80, 90, 120, 100 respectively.

If Sharma found 306 pages of material typed during the ten days, what might be the standard time per page if the observations are assumed to be adequate and allowances are given as 15%.

(Note: The total working time per day is 6 1 2 hours.)

ASSIGNMENT QUESTION