Due to decrease in manpower, the production in a factory decreases by 25%. By what per cent should the working hours be increased to restore the original production?
- A25%
- B50%
- C43
7
6
% - D33
3
1
%
Solution & Step-by-step Explanation
Let the initial production be 100 units.
After a decrease of 25%, the new production becomes:
100−25=75 units
To restore it back to the original level (100 units), production must be increased by:
Increase required=100−75=25 units
Percentage increase required on the current production level (75):
Percentage Increase=(
75
25
)×100=
3
1
×100=33
3
1
%
After a decrease of 25%, the new production becomes:
100−25=75 units
To restore it back to the original level (100 units), production must be increased by:
Increase required=100−75=25 units
Percentage increase required on the current production level (75):
Percentage Increase=(
75
25
)×100=
3
1
×100=33
3
1
%