A number is increased by 20% and then again by 20%. By what percent should the increased number be reduced so as to get back the original number? |
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(a) |
19% |
(b) |
30% |
(c) |
40% |
(d) |
44% |
A number is increased by 20% and then again by 20%. By what percent should the increased number be reduced so as to get back the original number? |
|
|||||||
(a) |
19% |
(b) |
30% |
(c) |
40% |
(d) |
44% |
Let the original number = 100. New number = 120% of 120% of 100
= 144.
Decrease on 144 = 44. Decrease on 100 = 30