Question

if a can do 30 % of a job in 12 days then in how many days will he complete 50% of the job

Answer 1

Step-by-step explanation:

30%=12

1%=12/30

50%=12/30*50

50%=20

he needs 20 days to complete 50% work

Answer 2

Given :  if a can do 30 % of a job in 12 days

To Find : in how many days will he complete 50% of the job

Solution:

Time taken to do a work is proportional to quantum of the work

30 % of a job  can be  done  in  =  12 Day

=> 1 % of the job  can be  done  in =  12/30  Day

=> 50 % of the job  can be done in   =  50 *  12/30  Days

- 5 * 12 / 3

= 5 * 4

= 20

50% job will be completed in 20 days

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