RRB Assistant Loco Pilot and Technician Model Paper 1 with solutions

Question : 16 of 100

Marks: +1, -0

What single discount is equivalent to two successive discounts of 20% and 15%?

Solution:

(b) Single equivalent discount
=

(\x+\y-{\xy}/100)%

(\20+15-{20×15}/100)%

= 32 %

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