A number is decreased by 10% and then increased by 10%. The number so obtained is 10 less than the original number. What is the original number?
a)
110
b)
900
c)
1000
d)
800
A number is decreased by 10% and then increased by 10%. The number so obtained is 10 less than the original number. What is the original number?
a)
110
b)
900
c)
1000
d)
800
Question ID - 56186 | SaraNextGen Top Answer
A number is decreased by 10% and then increased by 10%. The number so obtained is 10 less than the original number. What is the original number?
a)
110
b)
900
c)
1000
d)
800
|
A number is decreased by 10% and then increased by 10%. The number so obtained is 10 less than the original number. What is the original number? |
|||||||
|
a) |
110 |
b) |
900 |
c) |
1000 |
d) |
800 |
1 Answer
127 votes
Answer Key / Explanation : (c) -
Let the original number be 
After 10% decrease and then 10% increase, final number = 90% of (110% of 
=
According to problem, we have
127 votes
Answer Link
127