SSC CGL 26 Oct 2014 Shift 2 Paper

Question : 102 of 200

Marks: +1, -0

To attract more visitors, Zoo authority announces 20% discount on every ticket which costs 25 paise. For this reason, sale of ticket increases by 28%. Find the percentage of increase in the number of visitors.

40%
50%
60%
No change

Validate

Solution:

Original number of visitors = 100
Total revenue = 100 × 25
= 2500 paise
= Rs. 25
Case II,
Cost of each ticket =

{25×80}/{100}

= 20 paise = Re. 0.2
Total revenue =

{25×128}/{100}

= Rs. 32
If the number of visitors be x,
then
x × 0.2 = 32
⇒ x =

{32}/{0.2}

{320}/2

= 160
∴ Required percentage = 60

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