Question
There are some assistants and officers in an office, if
15 assistants leave then there are 2 officers for each assistant. After this again 45 officers go and there are 5 assistants for each officer, initially there were assistants.Solution
Assistance denotes by A and officers denote by F. ATQ- 2(A-15) = F         … (1) (A-15) = F/2 (A-15) = (F-45)5 F/2 = (F-45)5 F/10-F = -45 9F = 450 F = 50 Put the value of F in Equation (1) 2A -30 =50 2A =80 A = 40
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