RRB Non Technical Model Papers 9 with solutions

Question : 50 of 100

Marks: +1, -0

The price of a certain television set is discounted by 10% and the reduced price is then discounted by 10%. This series of successive discounts is equivalent to a single discount of :

Validate

Solution:

(3) Only one discount

= [a+ b-ab /100]%

=[ 10 +10-{10 ×10}/100]% = 19%

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