RRB Non Technical Model Papers 9 with solutions

Question : 90 of 100

Marks: +1, -0

If the price of groceries increases by 20%, its sale decreased by 10%. What will be its effect on the turnover ?

20% increased
8% increased
5% increased
None of these

Solution:

(2) Let there are 100 articles and cost of every articles is₹ 100
∴ total marketing = 100× 100= 10000 = C.P.
Now, the cost increases 20%
∴cost of 1 article

= 100×120/100

=₹ 120
∴ Selling decreases = 10%
∴ Now, sold articles

= 100 ×90/100= 90

∴New selling = 120 ×90
= 10800
∴ increased cost
= 10800 – 10000 = 800
∴increased %

=\text"(increased )×100"/\text"total marketing (earliar)"

={800 ×100}/10000= 8%

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