In an army selection process, the ratio of selected to unselected candidates was 9:2. If 80 less had applied and 20 less selected, the rati… — Answer & Discussion

In an army selection process, the ratio of selected to unselected candidates was 9:2. If 80 less had applied and 20 less selected, the ratio of selected to
unselected would have been 5:1. How many candidates had applied for the process?

A6160
B1540
C3080
D9240

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Discussion 2

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CCommunity07 Jun 2018

it from previous year ssc papers, 3080 is the right answer

CCommunity18 May 2019

11x = total$
Select = 9x, unselect = 2x$
Then applied 80 less,select 20 less $
It becomes 5:1 (6x total and 5x select and 1x unselect) $
So, ( 11x-80 )$/( 9x-20 ) = 6/5
Then solve we get x=280 then total =11x
11*280 =3080 (answer)