Question

Study the following table carefully and answer the questions given below it.
Number of candidates appearing for an interview fora post in Bank and percentage of candidates qualifying

Banks	Candidates Appearing	% of Candidates Qualifying
A	1500	14
B	2200	26
C	3000	17
D	980	20
E	1200	28
F	2500	21

What was the average number of candidates who appeared for the interview in bank A, C and E
together?

1. 2000
2. 1800
3. 1900
4. 1500

Answer 1

Correct Answer - Option 3 : 1900

Given:

Candidates appearing in bank A = 1500

Candidates appearing in bank B = 2200

Candidates appearing in bank C = 3000

Candidates appearing in bank D = 980

Candidates appearing in bank E = 1200

Candidates appearing in bank F = 2500

Formula used:

Average = (sum of total observations)/ (numbers of observations)

Calculation:

From bank A numbers of candidates qualify for interview = 14% of 1500

⇒ (14 × 1500)/100

⇒ 210

From bank C numbers of candidates qualify for interview = 17% of 3000

⇒ (17 × 3000)/100

⇒ 510

From bank  numbers of candidates qualify for interview = 28% of 1200

⇒ (28 × 1200)/100

⇒ 336

The average number of candidates who appeared for the interview in bank A, C and E
together = (1500 + 3000 + 1200)/3

⇒ 5700/3

⇒ 1900

∴ The average number of candidates who appeared for the interview in bank A, C and E
together is 1900.