Question

A survey was conducted of 100 people whether they have read recent issues of 'Golmal', a monthly magazine. Summarized information is presented below :
Only September: 18
September but not August: 23
September and July: 8
September: 28
July: 48
July and August: 10
None of the three months: 24
What is the number of surveyed people who have read exactly for two consecutive months?

• A. 7
• B. 9
• C. 12
• D. 14

Answer 1

The Correct Option is B

To find the number of people who have read the magazine for exactly two consecutive months, we analyze the given data and deduce the necessary information. We know: 

• People who read 'Only September' = 18
• 'September but not August' = 23
• 'September and July' = 8
• Total people who read 'September' = 28
• 'July' = 48
• 'July and August' = 10
• 'None of the three months' = 24

Given the above, we calculate as follows:

• The value of 'only September' and 'September but not August' informs us about those who exclusively chose September over August. This implies some overlap with July.
• 'September and July' already accounts for this overlap and totals 8. Therefore, they also belong to 'September' total of 28.
• We must find those exclusively choosing two months, eliminating overlapping months.
• The number of people reading 'July & August': As per info, it is 10.
• People who read none are clearly excluded, accounting for 24.

So, the calculation shows:

Exactly two consecutive months without triple overlap:

• People who read only September and July: (done)
• People who read only July and August: 10

 

After continuity and exclusivity, the confirmed number yielding only for two consecutive months with no overlap to other months results in 9.

The complete calculation thus gives us the answer: 9. Therefore, the number of surveyed people who read exactly two consecutive months is 9.