What will be the ratio of a number obtained by taking the following two steps alternatively in a n

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11 Jan 2010 ratio of number?

What will be the ratio of a number obtained by taking the following two steps alternatively in a number and
the number itself
1) Number is decreased by 20 %
2) Number is increased by 20 %

OPtion

(1) 0.98
(2) 1.00
(3) 1.20
(4) 0.80
(5) 1.08
(6) 1.04
(7) 0.96
(8) 0.92
(9) 0.90
(10) 1.10

Solution

Let the number is x
On taking these two operations alternatively, we get the new number as
x*0.8*1.2 = 0.96x
Hence the ratio is 0.96

Correct Option: 7 Best Solution (4)