RRB Group D 2-Nov-2014 Shift 1 Solved Paper

Question : 24 of 100

Marks: +1, -0

On subtracting 40% of a number from the same number, we get the result as 30. The number will be

Solution:

\;\text " Let the number be x. "\;

x-\;{40 x}/{100}=30

⇒ \;{100 x-40 x}/{100}=30

⇒ \;{60 x}/{100}=30

⇒ x=\;{30 × 100}/{60}=50

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