A number is first decreased by 10% and then increased by 10%. The number so obtained is 50 less than the original number. The original number is :
A. 5900
B. 5000
C. 5500
D. 5050
Answer: Option B
Solution(By Examveda Team)
Let the original number = xAccording to the question,
x × $$\frac{90}{110}$$ × $$\frac{110}{100}$$ = (x - 50)
x × $$\frac{99}{100}$$ = x - 50
99x = 100x - 5000
x = 5000
Hence original number = 5000
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B. $$\frac{1}{3}$$
C. $$\frac{1}{2}$$
D. $$\frac{2}{3}$$
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