IBPS SO Prelims Exam Model Paper 9

GIVEN :
Ratio of male to female employees in company is 1 ∶ 2.
When 2 males and 2 females left the job the new ratio became 1 ∶ 3.
CONCEPT :
Ratio Balancing.
ASSUMPTION :
Let’s assume common multiplication constant be k.
∴ Total number of male employees in company is k & total number of female employees in company is 2k.
CALCULATION :
When 2 males and 2 females left from job new ratio becomes 1 ∶ 3.

(k−2)

(2k−2)

=

1

3

∴ 3k - 6 = 2k - 2
∴ k = 4
∴ Number of male employees is 4 and female employees are 8.
When 2 male and 2 female employees left new number of male and female employees will be 2, 6.