A number is decreased by 10% and then increased by 10% . The number so obtained is 10 less than the original number. what was the original number ?

A 1,000
B 1050
C 1500
D 2000

Correct Answer: 1,000

Let the number x. After decrease by 10%, the number is .90x then it is increase by 10% and becomes .90x × 1.1 = .90x Now, x - .99x = 10 ⇒ x = 1000
Bissoy MCQ
#গণিত #শতকরা (Percentage) #Pubali Bank Ltd #Pubali Bank Ltd - Junior Officer/Junior Officer(Cash) - 18.07.2014

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