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An operation involves the following elements given below with their related data.

written 5.3 years ago by

modified 4.0 years ago by

Element	Observed time(minutes)	Rating	Remarks
A	0.20	90	-
B	0.05	80	-
C	0.03	100	-
D	0.78	100	-
E	0.06	100	-
F	0.05	100	-
G	0.02	85	Once in 5 pieces
H	0.06	80	-
I	0.10	90	-
J	0.04	90	Once in 20 pieces

Assuming rest and personal allowances as 13% and contingency allowances as 2% calculate standard time of the job.

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Element	Observed time (in mins)	Rating	Frequency	Normal Time [(Observed time x Rating)/ (Frequency x 100)]
A	0.20	90	1	0.18
B	0.05	80	1	0.04
C	0.03 …

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