Directions: Read the following caselet carefully and answer the questions that follow.
A company recorded the attendance of its employees over three consecutive working days—Monday, Tuesday and Wednesday. The total number of employees who attended during these three days was 750. The number of employees who attended on Monday, Tuesday and Wednesday was in the ratio 6 : 5 : 4, respectively. The ratio of Male to Female employees on Monday was 4 : 2, respectively. The number of Female employees on Tuesday was 25% more than the number of Female employees on Monday. The number of Male employees on Wednesday was 20 less than the number of Male employees on Tuesday.
If the number of Female employees on Wednesday increases by 20% and the number of Male employees on Monday decreases by 10%, then what will be the ratio of Female employees on Wednesday to Male employees on Monday?
- AOption (a)
19:25
- BOption (b)
19:30
- COption (c)
19:32
- DOption (d)
19:35
- EOption (e)
19:41
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Correct answer
19:30
Why this answer is correct
Common Calculation
Given:
Total employees = 750
Monday : Tuesday : Wednesday = 6 : 5 : 4
Male : Female on Monday = 4 : 2
Female on Tuesday = 25% more than Female on Monday
Male on Wednesday = 20 less than Male on Tuesday
Formula:
Number = (Ratio Share ÷ Total Ratio) × Total
Calculation:
⇒ Total parts = 6 + 5 + 4 = 15
⇒ Monday = (6/15) × 750 = 300
⇒ Tuesday = (5/15) × 750 = 250
⇒ Wednesday = (4/15) × 750 = 200
Monday
⇒ Male : Female = 4 : 2 = 2 : 1
⇒ Male = (2/3) × 300 = 200
⇒ Female = (1/3) × 300 = 100
Tuesday
⇒ Female = 100 × 125/100 = 125
⇒ Male = 250 – 125 = 125
Wednesday
⇒ Male = 125 – 20 = 105
⇒ Female = 200 – 105 = 95
Final Summary
| Day | Male | Female | Total |
|---|---|---|---|
| Monday | 200 | 100 | 300 |
| Tuesday | 125 | 125 | 250 |
| Wednesday | 105 | 95 | 200 |
| Total | 430 | 320 | 750 |
Given:
Female employees on Wednesday = 95
Male employees on Monday = 200
Formula:
New Number = Original Number × (100 ± Percentage)/100
Calculation:
⇒ Female employees on Wednesday after 20% increase = 95 × 120/100 = 114
⇒ Male employees on Monday after 10% decrease = 200 × 90/100 = 180
⇒ Required ratio = 114 : 180 = 19 : 30
∴ Answer = 19 : 30